'Blasphemed' in the Bible

And Isaiah said to them, Thus shall ye say to your master: Thus saith Jehovah: Be not afraid of the words that thou hast heard, wherewith the servants of the king of Assyria have blasphemed me.

Whom hast thou reproached and blasphemed? and against whom hast thou exalted the voice? Against the Holy one of Israel hast thou lifted up thine eyes on high.