1 Corinthians 15:33

be not deceived : "vicious conversation corrupts good morals."

Ephesians 5:11

and be not accomplices in the fruitless practices of vice; on the contrary, condemn them.

Titus 1:15

to the pure all things are pure: but to corrupt infidels nothing is pure; whose very mind and conscience is polluted.

Treasury of Scripture Knowledge

Summary

Every bed, whereon he lieth that hath the issue, is unclean: and every thing, whereon he sitteth, shall be unclean.

Bible References

Be unclean

1 Corinthians 15:33
be not deceived : "vicious conversation corrupts good morals."
Ephesians 5:11
and be not accomplices in the fruitless practices of vice; on the contrary, condemn them.
Titus 1:15
to the pure all things are pure: but to corrupt infidels nothing is pure; whose very mind and conscience is polluted.