blaspheme / blasphemed / blasphemy Profanity, wickedness, irreverence; one who speaks evil especially of God; in the Old Testament blasphemy carried the death penalty of stoning. The unforgivable sin is blasphemy against the Holy Spirit.him, saying thou didst blaspheme God 1 Kin 21:10but the blasphemy against the Holy Spirit Matt 12:31many other things blasphemously spake they Luke 22:65for the name of God is blasphemed among you Rom 2:24anger, wrath, malice, blasphemy, filthy Col 3:8of God and his doctrine be not blasphemed 1 Tim 6:1and upon his heads the name of blasphemy Rev 13:1opened his mouth in blasphemy against God Rev 13:6