Lev 18:24-28
24 "Don't pollute yourself in any of these ways. This is how the nations became polluted, the ones that I am going to drive out of the land before you. 25 Even the land itself became polluted and I punished it for its iniquities — the land vomited up its inhabitants. 26 You must keep my decrees and laws — natives and foreigners both. You must not do any of these abhorrent things. 27 The people who lived in this land before you arrived did all these things and polluted the land. 28 And if you pollute it, the land will vomit you up just as it vomited up the nations that preceded you.

Does this only apply to others? I don’t think so. This applies to us too.