'Committed Adultery' in the Bible

And I see when (for all the causes whereby backsliding Israel committed adultery) I have sent her away, and I give the bill of her divorce unto her, that treacherous Judah her sister hath not feared, and goeth and committeth fornication -- she also.

For they have committed adultery, And blood is in their hands, With their idols they committed adultery, And also their sons whom they bore to Me, They caused to pass over to them for food.