'Idol' in the Bible

But I have a few things against thee: that thou hast there those who hold the doctrine of Balaam, who taught Balak to cast a snare before the sons of Israel, to eat of idol sacrifices and commit fornication.

But I have against thee that thou permittest the woman Jezebel, she who calls herself prophetess, and she teaches and leads astray my servants to commit fornication and eat of idol sacrifices.