Therefore if any man be in Christ, he is a new creation: old things are passed away; behold, all things are become new.
All Commentaries on 2 Corinthians 5:17 Go To 2 Corinthians 5
Gregory of Nyssa
AD 394
“If any man is in Christ, he is a new creature, the former things have passed away.” The “new creation” is the apostolic rule. And what this is Paul makes abundantly clear in another section, saying: “In order that I might present to myself the church in all her glory, not having spot or wrinkle or any such thing, but that she might be holy and without blemish.” A new creature he called the indwelling of the Holy Spirit in a pure and blameless soul removed from evil and wickedness and shamefulness. For, when the soul hates sin, it closely unites itself with God, as far as it can, in the regimen of virtue; having been transformed in life, it receives the grace of the Spirit to itself, becomes entirely new again and is recreated. .