They (the Pharisees) answered Him, “We are Abraham’s descendants, and have never been in bondage to anyone. How can You say, ‘You will be made free’?”
Jesus answered them, “Most assuredly, I say to you, whoever commits sin is a slave of sin. And a slave does not abide in the house forever, but a son abides forever. Therefore if the Son makes you free, you shall be free indeed. John 8:34-36
Many people don't want anyone telling them what to do. They believe they are free, not realizing they are actually slaves to sin.