2. Korinther 5:17

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.

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.

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 Scripture…

The apostle proceeds in showing the reasons why they did not faint under their afflictions, namely, their expectation, desire, and assurance of happiness after death (Co2 5:1-5), and deduces an inference for the comfort of believers in their present state (Co2 5:6-8), and another to quicken them in their duty (Co2 5:9-11). Then he makes an apology for seeming to commend himself, and gives a good reason for his zeal and diligence (Co2 5:12-15), and mentions two things that are necessary in order to our living to Christ, regeneration and reconciliation (Co2 5:16 to the end).