'Commit Adultery' in the Bible

You say that a person should not commit adultery [i.e., sexual unfaithfulness to their mate], [but] do you commit adultery? You [claim to] hate idols, [but] do you rob [their] temples? [Note: It is difficult to determine how the Jews were doing this. Perhaps they were guilty of the "spirit" of idolatry by devoting their efforts and affections to material things instead of to God].