2 Peter 2:19
They promise them freedom, while they themselves are slaves of depravity
- for a man is a slave to whatever has mastered him.
John
8:34
Jesus replied, "I tell you the truth, everyone who sins is a slave
to sin.
Romans
6:11-14
11
In the same way, count yourselves dead to sin but alive to God in Christ
Jesus. 12
Therefore do not let sin reign in your mortal body so that you
obey its evil desires. 13
Do not offer the parts of your body to sin, as instruments of
wickedness, but rather offer yourselves to God, as those who have been
brought from death to life; and offer the parts of your body to him as
instruments of righteousness. 14 For sin shall
not be your master, because you are not under law, but under grace.