Admonition 5. Then what doth this speak to the Lord's own people? Surely this, that they should be in a watchful posture (Mark 13:37).
(1.) Watch therefore over your own hearts, least they should be over-charged with surfeiting and drunkenness, and the cares of this life, and so that day come upon you unawares; for as a snare shall it come upon all the dwellers upon the face of the earth, as it is in Luke 31:34-36.
(2.) Watch over the devil's temptations. Oh, have a care in the first place, lest by any means, as the serpent beguiled Eve, so your minds should be corrupted from the simplicity that is in Christ: And the rather, because at this day he is very busy with his doctrines, and his ministers; trying all ways, if by any means he might deceive you with fair speeches, and enticing carriages; what a fair shew in the flesh, yet denying the Lord, and refusing to be justified by the blood of Jesus the Son of Mary, the Son of God. Watch I say over the devil touching doctrines, for he labours as much this way as any way, for he knows that if he can but get you to lay a rotten foundation, he is sure of you, live as godly in your conceit as you will, and therefore, it is worth your observation, in that 24th of Matthew when Christ is speaking of the signs of his coming, he breaks forth with a warning word to his disciples, to beware of false teachers (v 4). The very first words that he answers to a question that his disciples put to him is this, 'Take heed that no man deceive you.' Again (v 11), 'And many false prophets shall rise, and shall deceive many.' And (v 24) he saith again, 'For there shall [come or] arise, false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect.'
(3.) Take heed that he doth not deceive you in point of worship, that he make you not slight any of the ordinances of God; for if he do, he will quickly make way for another temptation.
(4.) Take heed also that you have not your lamps to trim when the bridegroom comes; if you have, you may peradventure be ashamed and blush before him at his coming (1 John 2:28). Therefore content not yourselves with a profession of Christ, and no more, for the devil may deceive, yea, doth deceive a professing people many times. And if he will deceive a professing generation, he must come in this manner: Under the name of Christ. With a fair shew in the flesh of outward holiness (Gal 6:12). He must come 'with good words and fair speeches' (Rom 16:18). Now though he come to drunkards, swearers, whore mongers, thieves, liars, murderers, and covetous persons, in his black colours; yet if he will come to deceive a professing party, he must appear like an angel of light (2 Cor 11:14). And the reason why souls are deceived by him in these his appearances, is, because they are not able to distinguish betwixt the law and the gospel, the convictions of conscience by the law only, and convictions by the Spirit, but do (though they profess the Lord Jesus) give ear to every wind of doctrine, and being unstable, as Peter saith, do fall into the temptations of the devil, in wresting the scriptures to their own destruction (2 Peter 3:16).
Admonition 6. In a word, you that have not yet laid hold on the Lord Jesus Christ, for eternal life, lay hold upon him; upon his righteousness, blood, resurrection, ascension, intercession, and wait for his second coming to 'judge the world in righteousness' (Acts 17:31). And you that have laid hold, I say to you, lay faster hold on your Lord Jesus, 'Who hath ears to hear, let him hear' (Matt 13:43).
Now, that thou mayest the more clearly understand my faith in the doctrines of God's dear Son, I have thought good to hold forth again the doctrine of the former treatise by way of question and answer, as followeth.
Quest. Seeing there are many false Christs gone out into the world, according as was prophesied of in former times by the Lord himself (Matt 24:5,23). And seeing (if we be saved) we must be saved by a Christ; for he that misses of him (saith the scriptures) cannot be saved, because there is no way to come to the Father but by him, as it is written (John 14:6; Acts 4:12). How therefore, is the knowledge of the true Christ to be attained unto, that we may be saved by him?
Ans. Indeed to know Christ, (God's Christ) is as the scripture saith, the one thing necessary (Luke 10:42), without which all other things will avail nothing: And therefore I shall according to the scriptures, (1.) Tell you what God's Christ is. And, (2.) How the knowledge of him is attained unto. And therefore, God's Christ is true God, and true man. That he is true God, is manifest by that scripture, in Isaiah 9:6 where it is said, 'unto us a child is born, unto us a Son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, the mighty God, the everlasting Father, the Prince of Peace.' Also 1 John 5:20. And we are in him that is true, (saith the apostle) even in his Son Jesus Christ. This is the true God, and eternal life. See Hebrews 1:8; John 1:12; Romans 9:5; John 20:28. That he is true man, see again (Isa 9:6) where it is said, 'Unto us a child is born, unto us a Son is given'; and compare it with Matthew 1:21 where it is said, 'And she shall bring forth a Son, and thou shalt call his name JESUS: for he shall save his people from their sins,' see John 1:14, 'And the word was made flesh.' (1 Tim 3:16) 'God was manifest in the flesh.' These two scriptures are expounded by Hebrews 2:14 where it is said, 'Forasmuch then as the children are partakers of flesh and blood, he also himself likewise took part of the same'; that is, of flesh and blood, see Romans 8:3 and compare it with Luke 24:39 where Christ saith, 'Behold my hands and my feet, that it is I myself: handle me, and see; for a spirit hath not flesh and bones, as ye see me have.' And he doth often call himself by the name of the Son of man to signify that he is very man, as well as very God (Matt 24, 16:13).
Quest. But why was he true God and true man?