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.

John 8:34

"In most solemn truth I tell you," replied Jesus, "that every one who commits sin is the slave of sin.

Galatians 5:13

You however, brethren, were called to freedom. Only do not turn your freedom into an excuse for giving way to your lower natures; but become bondservants to one another in a spirit of love.

Romans 6:12-14

Let not Sin therefore reign as king in your mortal bodies, causing you to be in subjection to their cravings;

Romans 6:16-22

Do you not know that if you surrender yourselves as bondservants to obey any one, you become the bondservants of him whom you obey, whether the bondservants of Sin (with death as the result)

Galatians 5:1

Christ having made us gloriously free--stand fast and do not again be hampered with the yoke of slavery.

2 Timothy 2:26

and recover sober-mindedness and freedom from the Devil's snare, though they are now entrapped by him to do his will.

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.

1 Peter 2:16

Be free men, and yet do not make your freedom an excuse for base conduct, but be God's bondservants.

2 Peter 2:20

For if, after escaping from the pollutions of the world through a full knowledge of our Lord and Saviour Jesus Christ, people are once more entangled in these pollutions and are overcome, their last state has become worse than their first.

Treasury of Scripture Knowledge

Summary

While they promise them liberty, they themselves are the servants of corruption: for of whom a man is overcome, of the same is he brought in bondage.

They themselves

General references

Bible References

They promise

Galatians 5:1
Christ having made us gloriously free--stand fast and do not again be hampered with the yoke of slavery.
1 Peter 2:16
Be free men, and yet do not make your freedom an excuse for base conduct, but be God's bondservants.

They themselves

John 8:34
"In most solemn truth I tell you," replied Jesus, "that every one who commits sin is the slave of sin.
Romans 6:12
Let not Sin therefore reign as king in your mortal bodies, causing you to be in subjection to their cravings;
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.

Overcome

2 Peter 2:20
For if, after escaping from the pollutions of the world through a full knowledge of our Lord and Saviour Jesus Christ, people are once more entangled in these pollutions and are overcome, their last state has become worse than their first.
2 Timothy 2:26
and recover sober-mindedness and freedom from the Devil's snare, though they are now entrapped by him to do his will.

General references

Luke 14:30
saying, 'This man began to build, but could not finish.'
Luke 17:32
Remember Lot's wife.