KJV: 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.
NASB: "Behold, these caused the sons of Israel, through the counsel of Balaam, to trespass against the LORD in the matter of Peor, so the plague was among the congregation of the LORD.