(John 8:31-38 ESV)
So Jesus said to the Jews who had believed him, “If you abide in my word, you are truly my disciples, and you will know the truth, and the truth will set you free.” They answered him, “We are offspring of Abraham and have never been enslaved to anyone. How is it that you say, ‘You will become free’?”
Jesus answered them, “Truly, truly, I say to you, everyone who practices sin is a slave to sin. The slave does not remain in the house forever; the son remains forever. So if the Son sets you free, you will be free indeed. I know that you are offspring of Abraham; yet you seek to kill me because my word finds no place in you. I speak of what I have seen with my Father, and you do what you have heard from your father.”
A.W. Pink –
The condition of the natural man is far, far worse than he imagines, and far worse than the average preacher and Sunday school teacher supposes. Man is a fallen creature, totally depraved, with no soundness in him from the sole of his foot even unto the head (Isa. 1:6). He is completely under the dominion of sin (John 8:34), a bond-slave to divers lusts (Titus 3:3), so that he “cannot cease from sin” (2 Pet. 2:14). Moreover, the natural man is thoroughly under the dominion of it.