4. Above all, take heed of apostatizing from, or an utter desertion of, this covenant. To be deserted of God, is the greatest punishment, and to desert God, is the greatest sin. When you have set your hands to the plough, do not look back: remember Lot's wife. Besides the sin, this is, First, Extremely base and dishonourable. It is one of the brands set upon those Gentiles whom "God had given up to a reprobate mind, and to vile affections," that they were covenant breakers. And how base is that issue which is begotten between, and born from vile affections, and a reprobate mind? where the parents are such, it is easy to judge what the child must be. Second, Besides the sin and the dishonour, this is extremely dangerous and destructive. We are said in the native speaking, to cut a covenant, or to strike a covenant, when we make it; and if we break the covenant when we have made it, it will both strike and cut us, it will kill and slay us. If the cords of this covenant do not bind us, the cords of this covenant will whip us; and whip us, not as with cords, but as with scorpions. The covenant will have a quarrel with, and sends out a challenge unto such breakers of it, for reparation. And (if I may so speak) the great God will be its second. As God revenges the quarrel of His own covenant, so likewise the quarrel of ours. He hath already "Sent a sword to revenge the quarrel of His covenant." He will send another to revenge the quarrel of this upon the wilful violators of it. Yea, every lawful covenant hath a curse always waiting upon it, like a marshal or a sergeant, to attack such high contemners of it. It was noted before from the ceremony of killing, dividing, and passing between the divided parts of a beast, when covenants were made, that the imprecation of a curse upon the covenanters was implied, in case they wilfully transgressed or revolted from it. Let the transgressors of, and revolters from this covenant, fear and tremble at the same curse, even the curse of a dreadful division: "That God will divide them and their posterity in Jacob, and scatter them in our Israel; yea, let them fear, that God will rebuke them, and they shall flee far off, and shall be chased as the chaff of the mountains before the wind, and like a rolling wind before the whirlwind. This is (their portion, and) the portion of them that spoil us, and the lot of them that rob us." And if so, is not their lot fallen in an unpleasant place? have they not a dreadful heritage? to be under any curse is misery enough; but to be under a covenant curse, is the greatest, is all misery. For as the blessings we receive are most sweet, when they pass to us through the hands of a covenant; a mercy from a promise is far better than a mercy from bare Providence, because then it is sprinkled with the blood of Christ: so on the other side, the curse which falls upon any one is far more bitter when it comes through a covenant, especially an abused, a broken covenant. When the fiery beams of God's wrath are contracted into this burning glass, it will burn as low as hell, and none can quench it. That alone which quenches the fire of God's wrath is the blood of Christ. And the blood of Christ is the foundation of this covenant. Not only is that covenant which God hath made with us founded in the blood of Christ, but that also which we make with God. Were it not by the blood of Christ, we could not possibly be admitted to so high a privilege. Seeing then the blood of Christ only quenches the wrath of God, and this blood is the foundation of our covenant, how shall the wrath of God (except they repent, return and renew their covenant) be quenched towards such violators of it? And, as our Saviour speaks upon another occasion, "If the light which is in them be darkness, how great is that darkness?" So, I say, if that which is our friend turn upon us as an enemy, how great is that enmity; and if that which is our mercy be turned into wrath, how great is that wrath, and who can quench it? It is said of good king Josiah, that when he had made a covenant before the Lord, "he caused all that were present in Jerusalem, and in Benjamin, to stand to it." How far he interposed his regal authority, I stay not to dispute. But he caused them to stand to it; that is openly to attest, and to maintain it. Methinks the consideration of these things, should reign over the hearts of men, and command in their spirits, more than any prince can over the tongues or bodies of men, to cause them to stand to this covenant. Ye that have taken this covenant, unless ye stand to it, ye will fall by it. I shall shut up this point with that of the apostle, "Take unto you the whole armour of God, that you may be able to withstand in the evil day, and, when ye have done all, to stand," (Eph. vi. 13). Stand, and withstand, are the watchword of this covenant, or the impress of every heart which hath or shall sincerely swear unto it.

For the helping of you to stand to this covenant, I shall cast in a few advices about your walking in this covenant, or your carriage in it, which, if followed, I dare say, through the mercy of the Most High, your persons, these kingdoms, and this cause, shall not miscarry.

1. Walk in holiness and uprightness. When God renewed His covenant with Abraham, He makes this the preamble of it, "I am the Almighty God, walk before Me, and be thou perfect, and I will make My covenant between Me and thee." As this must be a covenant of salt, in regard of faithfulness; so there must be salt in this covenant, even the salt of holiness and uprightness. The Jews were commanded in all their offerings to use salt; and that is called the salt of the covenant, "Every oblation of thy meat-offering shalt thou season with salt, neither shalt thou suffer the salt of the covenant of thy God to be lacking." What is meant by salt on our parts, is taught us by Christ Himself, "Have salt in yourselves, and have peace one with another." Which I take to be parallel in sense with that of the apostle, "Follow peace with all men and holiness." As salt, the shadow of holiness, was called for, in all those Jewish services; so holiness, the true substantial salt, is called for in all ours. As then it was charged, "Let not the salt of the covenant of thy God be lacking:" so now it is charged, "Suffer not the salt of thy covenant with God and His people to be lacking." Seeing we have made a covenant of salt, that is, a sure covenant, let us remember to keep salt in our covenant. Let us add salt to salt, our salt to the Lord's salt, our salt of holiness to His salt of faithfulness, and we shall not miscarry.

2. Walk steadily or stedfastly in this covenant. Where the heart is upright and holy, the feet will be steady. Unstedfastness is a sure argument of unsoundness, as well as a fruit of it. "Their heart was not right with Him; neither were they stedfast in His covenant." As if He had said, would you know the reason why this people were so unstedfast? It was, because they were so unsound. "Their heart was not right with Him." We often see the diseases of men's hearts breaking forth at their lips, and at their finger ends, in all they say or do.

God will be steady to us; why should not we resolve to be so to Him? and this covenant will be stedfast and uniform unto us, why should not we resolve to be so too, and in this covenant? The covenant will not be our friend to-day, and our enemy to-morrow, do us good to-day, and hurt to-morrow, it will not be the fruitful this year, and barren the next; but it is our friend to do us good to-day, and ever. It is fruitful and will be so for ever. We need not let it lie fallow, we cannot take out the heart of it, tho' we should have occasion to plough it, and sow it every year. Much less will this covenant be so unstedfast to its own principles, as to yield us wheat to-day, and cockle to-morrow, an egg to-day, and to-morrow a scorpion; now bread, and anon a stone; now give us an embrace, and anon a wound; now help on our peace, and anon embroil us; now prosper our reformation, and anon oppose, or hinder it; strengthen us this year, and weaken us the next. No, as it will never be barren, so it will ever bring forth the same fruit, and that good fruit; and the more and the longer we use it, the better fruit. Like the faithful wife, "It will do us good, and not evil, all the days of its life." It is therefore, not only sinful, but most unsuitable and uningenuous, for us to be up and down, forward and backward, liking and disliking, like that double minded man, "Unstable in all our ways," respecting the duties of this covenant.

3. Walk believingly, live much in the exercise of faith. As we have no more good out of the covenant of God, than we have faith in it; so no more good out of our own, than (in a due sense) we have faith in it. There is as much need of faith, to improve this covenant, as there is of faithfulness. We live no more in the sphere of a covenant, than we believe. And we can make no living out of it but by believing. All our earnings come in here also, more by our faith, than by our works. Let not the heart of God be straitened, and His hand shortened by our unbelief. Where Christ marvelled at the unbelief of a people, consider what a marvel followed: Omnipotence was as one weak. "He could do no mighty works among them." Works less than mighty will not reach our deliverances or procure our mercies. The ancient worthies made more use of their faith, than to be saved, and get to heaven by it. "By faith the walls of Jericho fell down. By faith they subdued kingdoms, wrought righteousness, (or exercised justice) stopped the mouths of lions. By faith they quenched the violence of fire, escaped the edge of the sword, out of weakness they were made strong, waxed valiant in fight, turned to flight the armies of the aliens." We have Jerichos to reduce, and kingdoms to subdue, under the sceptre and government of Jesus Christ: we have justice to execute, and the mouths of lions to stop: we have a violent fire to quench, a sharp edged sword to escape, Popish alien armies to fight with; and we (comparatively to these mighty works) are but weak. How then shall we out of our weakness become strong, strong enough to carry us through these mighty works, strong enough to escape these visible dangers? If we walk and work by sense, and not by faith? And if we could get through all these works and dangers without faith, we should work but like men, not at all like Christians, but like men in a politic combination, not in a holy covenant. There's not a stroke of covenant work (purely so called) can be done without faith. As fire is to the chemist, so is faith to a covenant people. In that capacity, they can do nothing for themselves without it; and they have, they can have, no assurance that God will. Seeing then we are in covenant, we must go to counsel by faith, and to war by faith; we must pull down by faith, and build by faith; we must reform by faith, and settle our peace by faith. Besides, to do a work so solemn and sacred, and then not to believe and expect no fruit; yea, then to believe and expect answerable fruit, is a direct taking of God's name in vain, and a mock to Jesus Christ. And if we mock Christ by calling Him to a covenant, which we ourselves slight, as a thing we expect little or nothing from: "He will laugh at our calamity," and "mock when our fear cometh." Wherefore to close, "If ye will not believe, surely ye shall not be established," no, not by this sure covenant. But, "believe in the Lord your God, in covenant, so shall you be established; believe His prophets, so shall you prosper."

4. Walk cheerfully. So it becomes those that have God so near them. Such, even in their sorrows, should be like Paul, "As sorrowful, yet always rejoicing." The (as) notes not a counterfeiting of sorrow, but the overcoming of sorrow. On this ground David resolves against the fear of evil, tho' he should see nothing but evil; "Tho' I walk in the valley of the shadow of death, I will fear no evil: for Thou art with me." In a covenant, God and man meet; He is with us who is more than all that are against us: and when He is with us, who can be against us? For then all things, and all persons, even while (to the utmost of their skill and power) they set themselves against us, work for us; and should not we rejoice? If we knew that every loss were our gain, every wound our healing, every disappointment our success, every defeat our victory, would we not rejoice? Do but know what it is to be in covenant with God; and be sad, be hopeless, if you can. It is to have the strength and counsels of heaven engaged for you; it is to have Him for you, "Whose foolishness is wiser than men, and whose weakness is stronger than men." It is to have Him with you, "who doeth according to His will in the army of heaven, and among the inhabitants of the earth, and none can stay His hand, or say unto Him, what doest thou?" It is to have Him with you, "who frustrateth the tokens of the liars, and maketh the diviners mad, who turneth wise men backward, and maketh their knowledge foolish." It is to have Him with you, before whom "the nations are as the drop of a bucket, and as the dust of the balance, who taketh up the isles as a very little thing." In a word, it is to have Him with you, "who fainteth not, neither is weary; there is no searching of His understanding. He giveth power to the faint; and to them that have no might, He increaseth strength." This God is our God, our God in covenant; "This is our beloved and this is our Friend, O daughters of Jerusalem." And shall we not rejoice? Shall we not walk cheerfully? Tho' there be nothing but trouble before our eyes, yet our hearts should live in those upper regions, which are above storms and tempests, above rain and winds, above the noise and confusions of the world. Why should sorrow sit clouded in our faces, or any darkness be in our hearts, while we are in the shine and light of God's countenance? It is said, "That all Judah rejoiced at the oath; for they had sworn with all their heart:" If we have sworn heartily, we shall rejoice heartily. And for ever banish base fears, and killing sorrows from our hearts; and wipe them from our faces. They, who have unworthy fears in their hearts, give too fair an evidence that they did not swear with their hearts.

5. Walk humbly and dependently; rejoice, but be not secure. Trust to God in covenant, not to your covenant. Make not your covenant your Christ; no, not for this temporal salvation. As a horse trusted to, is a vain thing to save a man, so likewise is a covenant trusted to; neither can it deliver a nation by its great strength: tho' indeed the strength of it be greater than the strength of many horses. "In vain is salvation hoped for from this hill, or from a multitude of mountains," heaped up and joined in one by the bond of this covenant. Surely in the Lord our God, our God in covenant, is the salvation of England. We cannot trust too much in God, nor too little in the creature; there is nothing breaks the staff of our help, but our leaning upon it. If we trust in our covenant, we have not made it with God, but we have made it a god; and every god of man's making, is an idol, and so nothing in the world: you see, pride in, or trust to this covenant will make it an idol, and then in doing all this, we have done nothing; for "an idol is nothing in the world." And of nothing, comes nothing. By overlooking to the means, we lose all; and by all our travail shall bring forth nothing but wind: it will not work any deliverance in the land. Wherefore, "rest not in the thing done, but get up, and be doing," which is the last point, and my last motion about your walking in covenant.

6. Walk industriously and diligently in this covenant. You were counselled before to stand to the covenant, but take heed of standing in it. Stand, as that is opposed to defection; but if you stand as that is opposed to action, you are at the next door to falling. A total neglect is little better than total apostasy.

We have made a perpetual covenant, never to be forgotten, as was shewed out of the prophet. It is a rule, that words in scripture, which express only an act of memory, include action and endeavours. When the young man is warned to "remember his Creator in the days of his youth," he is also charged to love, and to obey Him. And while we say, this covenant is never to be forgotten; we mean, the duties of it are ever to be pursued, and, to the utmost of our power, fulfilled. As soon as it is said that Josiah made all the people stand to the covenant; the very next words are, "and the inhabitants of Jerusalem did according to the covenant of God, the God of their fathers." They stood to it, but they did not, like those, "stand all the day idle;" they fell to work presently. And so let us. Having laid this foundation, a sure covenant, now let us arise and build, and let our hands be strong. Do not think that all is done, when this solemnity is done, It is a sad thing to observe how some, when they have lifted up their hands, and written down their names, think presently their work is over. They think, now surely they have satisfied God and man for they have subscribed the covenant.