'Blasphemy' in the Bible

"I know your works, oppression, and your poverty (but you are rich), and the blasphemy of those who say they are Jews, and they are not, but are a synagogue of Satan.

A mouth speaking great things and blasphemy was given to him. Authority to make war for forty-two months was given to him.

He opened his mouth for blasphemy against God, to blaspheme his name, and his dwelling, those who dwell in heaven.