1 Corinthians 3:17
If any one destroys God's temple, God will destroy him. For God's temple is holy, and that temple you are.
Hebrews 10:29
How much severer punishment do you think a man will deserve who has trampled under foot the Son of God, and has regarded as an unclean thing the blood of the covenant by which he was sanctified, and has insulted the Spirit of grace?
Hebrews 12:14-15
Strive for peace with all men, and for the holiness without which no one will see the Lord.
Jude 1:4
For certain persons have crept in secretly, those who were long ago marked out for this condemnation, ungodly persons who turn the grace of our God into licentiousness and deny our only Master and Lord, Jesus Christ.