'Adulteries' in the Bible

I saw that even though I had sent unfaithful Israel away for all her adulteries and had given her a divorce decree, her treacherous sister Judah didn't fear, and she, too, committed adultery.

I've seen your detestable behavior: your adulteries, your passionate neighing, your lewd immorality on the hills in the field. How terrible it will be for you, Jerusalem! You are unclean. How much longer will this go on?"