1 Corinthians 15:33

15:33 Do not be deceived: “Bad company corrupts good morals.”

Ephesians 5:11

5:11 Do not participate in the unfruitful deeds of darkness, but rather expose them.

Titus 1:15

1:15 All is pure to those who are pure. But to those who are corrupt and unbelieving, nothing is pure, but both their minds and consciences are corrupted.