Rom 12:1-2
"I appeal to you therefore, brothers, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship. Do not be conformed to this world, but be transformed by the renewal of your mind."
The "therefore" (oun) connects ethics to theology: the Christian life is a response to God's mercy. Thysian zosan — living sacrifice. Logiken latreian — spiritual/rational worship: worship is not merely ritual — it is the whole life offered to God. Metamorphousthe — be transformed (from which "metamorphosis" comes).