Hebrews 10:26-31

For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more a sacrifice for sins, but a certain fearful expectation of judgment, and a fierceness of fire which shall devour the adversaries. A man that hath set at nought Moses’ law dieth without compassion on the word of two or three witnesses: 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. It is a fearful thing to fall into the hands of the living God.