Two types of freedom are dealt with here!

Proverbs 8:36 (KJV) 36 But he that sinneth against me wrongeth his own soul: all they that hate me love death.
John 8:44 (KJV) 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.