Acts 8:23
For I perceive that you have fallen into the bitterest bondage of unrighteousness."
Hebrews 12:15
Be carefully on your guard lest there be any one who falls back from the grace of God; lest any root bearing bitter fruit spring up and cause trouble among you, and through it the whole brotherhood be defiled;
John 8:34
"In most solemn truth I tell you," replied Jesus, "that every one who commits sin is the slave of sin.
Romans 6:17-22
But thanks be to God that though you were once in thraldom to Sin, you have now yielded a hearty obedience to that system of truth in which you have been instructed.
Titus 3:3
For there was a time when we also were deficient in understanding, obstinate, deluded, the slaves of various cravings and pleasures, spending our lives in malice and envy, hateful ourselves and hating one another.
2 Peter 2:4
For God did not spare angels when they had sinned, but hurling them down to Tartarus consigned them to caves of darkness, keeping them in readiness for judgement.
2 Peter 2:19
And they promise them freedom, although they are themselves the slaves of what is corrupt. For a man is the slave of any one by whom he has been worsted in fight.