1 Corinthians 3:17
If any person destroys God's Temple, God will destroy him. For God's Temple is holy [i.e., set apart for His service], and you people are His [holy] Temple.
Hebrews 10:29
How much more severely do you think a person deserves to be punished who has trampled on the Son of God and has regarded the blood of the [New] Agreement, with which he was set apart for God, an unholy thing and has insulted the Holy Spirit, through whom God's unearned favor is shown?
Hebrews 12:14-15
Actively seek to live in peace with all people. And be dedicated to God, because no one will see God without this.
Jude 1:4
For certain men have secretly infiltrated [your ranks]; they are men who had been written about long ago that they should be judged [and condemned] for perverting the unearned favor of our God into [a license for] living unrestrained, indecent lives, and who deny [the identity and work of] our only Master and Lord, Jesus Christ.