Cyrill of Alexandria
"Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, all things have become new" (2 Cor 5:17). For we are transformed in Christ and become a new creation. In Him, and in Him alone, we have received a new name: we are called Christ's. Therefore the divine Paul himself says of us in another place: "Those who are Christ's have crucified the flesh with its passions and desires" (Gal 5:24). For those who are in Christ have a life fitting for holiness, standing above fleshly passions and earthly impurity. That a new name will be given to us, granted in Christ, can be clear from the words of God crying out through the saints. To those who serve Me, He says, "a new name" will be given, which will be blessed on the earth. For they shall bless the true God.