In these verses the apostle mentions two things that are necessary in order to our living to Christ, both of which are the consequences of Christ's dying for us; namely, regeneration and reconciliation.

I.Regeneration, which consists of two things; namely, 1. Weanedness from the world: "Henceforth we know no man after the flesh, Co2 5:16. We do not own nor affect any person or thing in this world for carnal ends and outward advantage: we are enabled, by divine grace, not to mind nor regard this world, nor the things of this world, but to live above it. The love of Christ is in our hearts, and the world is under our feet." Note, Good Christians must enjoy the comforts of this life, and their relations in this world, with a holy indifference. Yea, though we have known Christ after the flesh, yet, says the apostle, we know him no more. It is questioned whether Paul had seen Christ in the flesh. However, the rest of the apostles had, and so might some among those he was now writing to. However, he would not have them value themselves upon that account; for even the bodily presence of Christ is not to be desired nor doted upon by his disciples. We must live upon his spiritual presence, and the comfort it affords. Note, Those who make images of Christ, and use them in their worship, do not take the way that God has appointed for strengthening their faith and quickening their affections; for it is the will of God that we should not know Christ any more after the flesh. 2. A thorough change of the heart: For if any man be in Christ, if any man be a Christian indeed, and will approve himself such, he is, or he must be, a new creature, Co2 5:17. Some read it, Let him be a new creature. This ought to be the care of all who profess the Christian faith, that they be new creatures; not only that they have a new name, and wear a new livery, but that they have a new heart and new nature. And so great is the change the grace of God makes in the soul, that, as it follows, old things are passed away - old thoughts, old principles, and old practices, are passed away; and all these things must become new. Note, Regenerating grace creates a new world in the soul; all things are new. The renewed man acts from new principles, by new rules, with new ends, and in new company.

II.Reconciliation, which is here spoken of under a double notion: -

1.As an unquestionable privilege, Co2 5:18, Co2 5:19. Reconciliation supposes a quarrel, or breach of friendship; and sin has made a breach, it has broken the friendship between God and man. The heart of the sinner is filled with enmity against God, and God is justly offended with the sinner. Yet, behold, there may be a reconciliation; the offended Majesty of heaven is willing to be reconciled. And observe, 1. He has appointed the Mediator of reconciliation. He has reconciled us to himself by Jesus Christ, Co2 5:18. God is to be owned from first to last in the undertaking and performance of the Mediator. All things relating to our reconciliation by Jesus Christ are of God, who by the mediation of Jesus Christ has reconciled the world to himself, and put himself into a capacity of being actually reconciled to offenders, without any wrong or injury to his justice or holiness, and does not impute to men their trespasses, but recedes from the rigour of the first covenant, which was broken, and does not insist upon the advantage he might justly take against us for the breach of that covenant, but is willing to enter into a new treaty, and into a new covenant of grace, and, according to the tenour thereof, freely to forgive us all our sins, and justify freely by his grace all those who do believe. 2. He has appointed the ministry of reconciliation, Co2 5:18. By the inspiration of God the scriptures were written, which contain the word of reconciliation, showing us that peace was made by the blood of the cross, that reconciliation is wrought, and directing us how we may be interested therein. And he has appointed the office of the ministry, which is a ministry of reconciliation: ministers are to open and proclaim to sinners the terms of mercy and reconciliation, and persuade them to comply therewith. For,

2.Reconciliation is here spoken of as our indispensable duty, Co2 5:20. As God is willing to be reconciled to us, we ought to be reconciled to God. And it is the great end and design of the gospel, that word of reconciliation, to prevail upon sinners to lay aside their enmity against God. Faithful ministers are Christ's ambassadors, sent to treat with sinners on peace and reconciliation: they come in God's name, with his entreaties, and act in Christ's stead, doing the very thing he did when he was upon this earth, and what he wills to be done now that he is in heaven. Wonderful condescension! Though God can be no loser by the quarrel, nor gainer by the peace, yet by his ministers he beseeches sinners to lay aside their enmity, and accept of the terms he offers, that they would be reconciled to him, to all his attributes, to all his laws, and to all his providences, to believe in the Mediator, to accept the atonement, and comply with his gospel, in all the parts of it and in the whole design of it. And for our encouragement so to do the apostle subjoins what should be well known and duly considered by us (Co2 5:21), namely, (1.) The purity of the Mediator: He knew no sin. (2.) The sacrifice he offered: He was made sin; not a sinner, but sin, that is, a sin-offering, a sacrifice for sin. (3.) The end and design of all this: that we might be made the righteousness of God in him, might be justified freely by the grace of God through the redemption which is in Christ Jesus. Note, [1.] As Christ, who knew no sin of his own, was made sin for us, so we, who have no righteousness of our own, are made the righteousness of God in him. [2.] Our reconciliation to God is only through Jesus Christ, and for the sake of his merit: on him therefore we must rely, and make mention of his righteousness and his only.

If any man be in Christ, he is a new creature - It is vain for a man to profess affinity to Christ according to the flesh, while he is unchanged in his heart and life, and dead in trespasses and sins; for he that is in Christ, that is, a genuine Christian, having Christ dwelling in his heart by faith, is a new creature; his old state is changed: he was a child of Satan, he is now a child of God; he was a slave of sin, and his works were death; he is now made free from sin, and has his fruit unto holiness, and the end everlasting life. He was before full of pride and wrath; he is now meek and humble. He formerly had his portion in this life, and lived for this world alone; he now hath God for his portion, and he looks not at the things which are seen, but at the things which are eternal. Therefore, old things are passed away.

Behold, all things are become new - The man is not only mended, but he is new made; he is a new creature, καινη κτισις, a new creation, a little world in himself; formerly, all was in chaotic disorder; now, there is a new creation, which God himself owns as his workmanship, and which he can look on and pronounce very good. The conversion of a man from idolatry and wickedness was among the Jews denominated a new creation. He who converts a man to the true religion is the same, says R. Eliezer, as if he had created him.

And all things are of God,.... A man's being brought into a Gospel church state is of God; the causing all old things to pass away, whether in the Jewish or Gentile world, is of God; the shaking of the heavens and the earth, and the removing of those things that are shaken, the abrogation of the ceremonial law, the putting an end to all the Mosaic rites and sacrifices, the ejection of Satan out of the Heathen temples, and the abolition of Gentilism, with every thing else that comes under the names of old, and new, are of God: it is he that causes old things to pass away, and makes all things new, see Rev 21:1. Moreover, as all things in the old creation are from him, all creatures owe their beings to him, are supported in them by him, and all are made for his pleasure, and his glory so all things in the new creation are of him; the work of renovation itself is his; all the grace that is implanted in regeneration comes front him: nothing is of the creature, or to be ascribed to it. All things in redemption are of him; he drew the plan of it, called his Son to be the Redeemer, appointed and sent him as such; and particularly that branch of it, reconciliation, is of him:

who hath reconciled us to himself by Jesus Christ. The work of reconciliation, or making atonement for sin, is ascribed to the Father; not that he is the author of it, for it is properly Christ's work; but because he took the first step towards it: he formed the scheme of it; he set forth his Son in his purposes and decrees to be the propitiary sacrifice; he assigned him this work in council and covenant, in promise and in prophecy, and sent him to effect it; therefore he is said to do it "by" him; that is, by his blood and sacrifice, by his sufferings and death, to which, and to which alone, the Scriptures ascribe our peace and reconciliation: and this is made to "himself": as being the party offended, whose law was broken, against whom sin was committed, and whose justice required and demanded satisfaction:

and hath given to us the ministry of reconciliation; which is the Gospel of peace, the word which preaches, publishes and declares, peace made by the blood of Christ; which is a gift to ministers, and a blessing to the people. The free grace of God greatly appears in this matter; God the Father sets this work of reconciliation on foot, Christ has brought it about, and the ministers of the Gospel publish it.

Therefore--connected with the words in Co2 5:16, "We know Christ no more after the flesh." As Christ has entered on His new heavenly life by His resurrection and ascension, so all who are "in Christ" (that is, united to Him by faith as the branch is In the vine) are new creatures (Rom 6:9-11). "New" in the Greek implies a new nature quite different from anything previously existing, not merely recent, which is expressed by a different Greek word (Gal 6:15).

creature--literally, "creation," and so the creature resulting from the creation (compare Joh 3:3, Joh 3:5; Eph 2:10; Eph 4:23; Col 3:10-11). As we are "in Christ," so "God was in Christ" (Co2 5:19): hence He is Mediator between God and us.

old things--selfish, carnal views (compare Co2 5:16) of ourselves, of other men, and of Christ.

passed away--spontaneously, like the snow of early spring [BENGEL] before the advancing sun.

behold--implying an allusion to Isa 43:19; Isa 65:17.