'Insulting' in the Bible

The Assyrian king also wrote letters insulting and taunting the Lord God of Israel, and speaking against Him, saying, “As the gods of the nations of other lands have not rescued their people from my hand, so the God of Hezekiah will not rescue His people from my hand.”

And they were saying many other [evil and slanderous] things against Him, blaspheming [speaking sacrilegiously and abusively about] Him.

even though I was formerly a blasphemer [of our Lord] and a persecutor [of His church] and a shameful and outrageous and violent aggressor [toward believers]. Yet I was shown mercy because I acted out of ignorance in unbelief.

How much greater punishment do you think he will deserve who has rejected and trampled under foot the Son of God, and has considered unclean and common the blood of the covenant that sanctified him, and has insulted the Spirit of grace [who imparts the unmerited favor and blessing of God]?