Jesus, speaking to his followers:

John 8:32 - And ye shall know the truth, and the truth shall make you free.

Jesus, speaking to the Pharisees:

John 8:44 - Ye are of your father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it.

I know the truth, so I will always be free. I will never be a slave or a servant to the devil.