Ezekiel 20:7

abominations of his eyes Those to which his eyes and desires were directed, the idols, cf. Ezekiel 18:6; Numbers 15:39. The prophet charges Israel with idolatry in Egypt (ch. Ezekiel 23:3). Though history as we have it says little of such a thing, it may be assumed as certain, considering the people's receptivity to the worship of their neighbours throughout their history. The same view, Joshua 24:14; cf. Leviticus 18:3.

The question how far Jehovah was known and worshipped in Egypt is an obscure one. The name could not have been altogether unknown or the people could not have been rallied by Moses to his service nor induced to put themselves under his protection. That his worship, however, was mixed with impurities may be assumed. How far the people partook in the worship of Egyptian deities cannot be ascertained.