Albert Barnes Commentary Ezekiel 18:6

"and hath not eaten upon the mountains, neither hath lifted up his eyes to the idols of the house of Israel, neither hath defiled his neighbor`s wife, neither hath come near to a woman in her impurity," — Ezekiel 18:6 (ASV)

Eaten, upon the mountains — At the feast of idols, in contradiction to the command of (Deuteronomy 12:17).

Idols of the house of Israel — Idolatry was so popular that certain idols were counted as belonging to the people of Israel, of whom Yahweh was the true God.