John 8:34

8:34 Jesus answered them, “I tell you the solemn truth, everyone who practices sin is a slave of sin.

Romans 6:17

6:17 But thanks be to God that though you were slaves to sin, you obeyed from the heart that pattern of teaching you were entrusted to,

Romans 6:22

6:22 But now, freed from sin and enslaved to God, you have your benefit leading to sanctification, and the end is eternal life.