# he does not eat upon the mountains

"he does not eat meat sacrificed to idols on the mountains"

# lift up his eyes to the idols

"worship the idols" or "pray to the idols"

# the house of Israel

"the Israelite people group". See Ezekiel 3:1.

# approach a woman during her impurity

"tried to sleep with a woman during her impurity"

# during her impurity

"when she is unclean" or "during her monthly period"