Hebrews 10:31

The punishment of these apostates is further aggravated from the inflicter of it, the knowledge of which should make them tremble; the thoughts of it might affect them, as the hand-writing on the wall did Belshazzar, Daniel 5:6. It should strike horror into their heart, trembling into their persons, Deuteronomy 28:65,66, by apostacy from him as a Father, to be subjected to him as a Judge, and as obnoxious to his severest judgment. Him in whose hand is power inexpressible, 1 Chronicles 29:12, to avenge himself on his enemies, Psalms 90:11, who have renounced him as their God, and provoked him to fury by it. A God that will not repent of vengeance, and who liveth ever to inflict it; who lifts up his hand to heaven, and saith, I live for ever, Deuteronomy 32:39,40; to punish with everlasting burning, and a devouring fire, such traitors to himself. So is he described, Isaiah 33:14 Matthew 10:28. His vengeance on these apostates is like himself, everlasting.