Romans 6:16-18

16 Know you not, that to whom you yield yourselves servants to obey, his servants you are to whom you obey; whether of sin to death, or of obedience to righteousness?

17 But God be thanked, that you were the servants of sin, but you have obeyed from the heart that form of doctrine which was delivered you.

18 Being then made free from sin, you became the servants of righteousness.