1 Corinthians 9:27

9:27 Instead I subdue my body and make it my slave, so that after preaching to others I myself will not be disqualified.

Romans 7:14

7:14 For we know that the law is spiritual – but I am unspiritual, sold into slavery to sin.

Hebrews 12:15-16

12:15 See to it that no one comes short of the grace of God, that no one be like a bitter root springing up and causing trouble, and through him many become defiled. 12:16 And see to it that no one becomes an immoral or godless person like Esau, who sold his own birthright for a single meal.

Jude 1:12

1:12 These men are dangerous reefs at your love feasts, feasting without reverence, feeding only themselves. They are waterless clouds, carried along by the winds; autumn trees without fruit – twice dead, uprooted;