Hebrews 10:29-30

of how much sorer punishment, think ye, shall he be judged worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant wherewith he was sanctified an unholy thing, and hath done despite unto the Spirit of grace? For we know him that said, Vengeance belongeth unto me, I will recompense. And again, The Lord shall judge his people.