Mark 3:28-30 AMPC
Truly and solemnly I say to you, all sins will be forgiven the sons of men, and whatever abusive and blasphemous things they utter;
But whoever speaks abusively against or maliciously misrepresents the Holy Spirit can never get forgiveness, but is guilty of and is in the grasp of an everlasting trespass.
For they persisted in saying, He has an unclean spirit.
AMPC: Amplified Bible, Classic Edition