Revelation 2:14-15 WNT

14 Yet I have a few things against you, because you have with you some that cling to the teaching of Balaam, who taught Balak to put a stumbling-block in the way of the descendants of Israel--to eat what had been sacrificed to idols, and commit fornication.
15 So even you have some that cling in the same way to the teaching of the Nicolaitans.