Christ mentioned this kind of sin in that episode where he was accused by some scribes that he cast out devils by Beelzebub, the prince of devils.

Q. When we ask forgiveness is it necessary to list every sin? What if we can’t remember everything we’ve done or what we’ve confessed before? Tim Donovan, Jarrett, Va. A. God knows we don’t have ...

DEAR DR. GRAHAM: I've tried to confess my sins to God so He'll forgive me, but I'm sure I don't remember everything I've ever done wrong. This worries me, because I know I need to have all my sins ...

DEAR DR. GRAHAM: How can I know if God has really forgiven me? I did something several years ago that was very wrong, and I've confessed it repeatedly to God and begged for His forgiveness, but I ...