2 cor 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.

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.