FIFTH. A fifth office of Christ in reference to the second covenant was, that He should be the forerunner to Heaven before His saints that were to follow after. First, He strikes hands in the covenant, [and then] He stands bound as a Surety to see everything in the covenant accomplished that was to be done on His part; [next] He brings the message from Heaven to the world; and before He goeth back, He offereth Himself for the same sins that He agreed to suffer for; and so soon as this was done, He goeth post-haste to Heaven again, not only to exercise the second part of His priestly office, but as our forerunner, to take possession for us, even into Heaven itself, as you may see, where it is said, "Whither the Forerunner is for us entered" (Heb 6:20).
First. He is run before to open Heaven's gates—Be ye open, ye everlasting doors, that the King of Glory may enter in.
Second. He is run before us to take possession of glory in our natures for us.
Third. He is run before to prepare us our places against we come after—"I go to prepare a place for you" (John 14:1-3).
Fourth. He is run thither to make the way easy, in that He hath first trodden the path Himself.
Fifth. He is run thither to receive gifts for us. All spiritual and heavenly gifts had been kept from us had not Christ, so soon as the time appointed was come, run back to the Kingdom of Glory to receive them for us. But I cannot stand to enlarge upon these glorious things, the Lord enlarge them upon your hearts by meditation. [These things have I spoken to show you that saints are under grace.]
Christ completely fulfilled the conditions of the new covenant.
Here now I might begin to speak of His prophetical and kingly office, and the privileges that do and shall come thereby, but that I fear I shall be too tedious, therefore at this time I shall pass them by. Thus you may see how the Covenant of Grace doth run, and with Whom it was made, and also what were the conditions thereof.
Now, then, this grace, this everlasting grace of God, comes to be free to us through the satisfaction, according to the conditions, given by Another for us; for though it be free, and freely given to us, yet the obtaining of it did cost our Head, our public Man, a very dear price. "For ye are bought with a price," even with the precious blood of Christ. So it is by Another, I say, not by us; yet it is as surely made over to us, even to so many of us as do or shall believe, as if we had done it, and obtained the grace of God ourselves (1 Cor 6:20; 1 Peter 1:9). Nay, surer; for consider, I say, this grace is free to us, and comes upon a clear score, by virtue of the labour and purchase of Another for us; mark, that which is obtained by Another for us is not obtained for us by ourselves—No, but Christ hath, not by the blood of goats and calves, "obtained eternal redemption for us," which were things offered by men under the law, "but by His own blood," meaning Christ's, "He entered in once into the holy place, having obtained eternal redemption for us" (Heb 9:12).
It comes to be unchangeable through the perfection of that satisfaction that was given to God through the Son of Mary for us; for whatever the Divine, infinite, and eternal justice of God did call for at the hands of man, if ever he intended to be a partaker of the grace of God, this Jesus, this one Man, this public Person, did, did completely give a satisfaction to it, even so effectually; which caused God not only to say, I am pleased, but "I am well pleased"; completely and sufficiently satisfied with Thee on their behalf; for so you must understand it (Matt 3:17). Mark therefore these following words—"And, having made peace," or completely made up the difference, "through the blood of His cross, by Him to reconcile all things unto Himself; by Him, I say, whether they be things in earth, or things in heaven. And you, that were sometime alienated and enemies in your mind by wicked works, yet now hath He reconciled," how? "in the body of His flesh through death, to present you holy," mark, "holy and unblameable and unreproveable in His sight" (Col 1:20-22). And thus it is grace, unchangeable grace to us; because it was obtained, yea, completely obtained, for us, by Jesus Christ, God-man.