Leviticus 14:36
And the priest will give orders for everything to be taken out of the house, before he goes in to see the disease, so that the things in the house may not become unclean; and then the priest is to go in to see the house;
1 Corinthians 15:33
Do not be tricked by false words: evil company does damage to good behaviour.
2 Timothy 2:17-18
And their words will be like poisoned wounds in the flesh: such are Hymenaeus and Philetus;
Hebrews 12:15
Looking with care to see that no man among you in his behaviour comes short of the grace of God; for fear that some bitter root may come up to be a trouble to you, and that some of you may be made unclean by it;
Revelation 18:4
And another voice from heaven came to my ears, saying, Come out of her, my people, so that you may have no part in her sins and in her punishments.