26For if we sin wilfully
after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins,
 27But a certain fearful looking for of
judgment and fiery indignation, which shall devour the adversaries.  28He that despised Moses’ law died without mercy under two or three
witnesses:  29Of how much sorer
punishment, suppose ye, shall he be thought 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?  30For we know
him that hath said, Vengeance belongeth unto me, I will recompense, saith the Lord. And again, The Lord
shall judge his people.  31It is a fearful
thing to fall into the hands of the living God. (Hebrews
10:26-31, King James
Version)