'Theirs' in the Bible

The messenger who went to call Micaiah instructed him, “Look, the words of the prophets are unanimously favorable for the king. So let your words be like theirs, and speak favorably.”

and they abandoned the temple of Yahweh, the God of their ancestors and served the Asherah poles and the idols. So there was wrath against Judah and Jerusalem for this guilt of theirs.