Caused ... to commit trespass - More literally, “became to the children of Israel for a cause (or, incitement) of treachery to the Lord.”
Related Commentaries of Numbers 31:16
Numbers 31:16
16 Behold, these caused the children of Israel, through the counsel of Balaam, to commit trespass against the LORD in the matter of Peor, and there was a plague among the congregation of the LORD.