Verses 7-10. - No special mention of the idols of Egypt occurs in the Pentateuch, but it lies, in the nature of the case, that this was the form of idolatry implied in the second commandment, and the history of the "golden calf" (Exodus 32:4) shows that they had caught the infection of the Mnevis or Apis worship while they sojourned in Egypt. Here apparently the prophet speaks of that sojourn prior to the mission of Moses. In bold anthropomorphic speech he represents Jehovah as half purposing to make an end of the people there and then, and afterwards repenting. He wrought for his Name's sake, that the deliverance of the Exodus might manifest his righteousness and might, the attributes specially implied in that Name, to Egypt and the surrounding nations. They should not have it in their power to say that he had abandoned the people whom he had chosen.

20:1-9. Those hearts are wretchedly hardened which ask God leave to go on in sin, and that even when suffering for it; see ver.Then I said unto them,.... Having promised and swore to do such great and good things for them; which must lay them under an obligation to regard what he should command them: promises and blessings of goodness are great incentives to duty, and lay under great obligation to it:

cast ye away every man the abominations of his eyes; which should be so, meaning idols; but which his eyes were taken with, and were lifted up unto, as his gods; though they ought to have been rejected with the utmost abhorrence, as abominable:

and defile not yourselves with the idols of Egypt; their "dunghill gods", as the word (f) signifies; which to worship, as it was an abomination to God, was defiling to themselves; yet these they were fond of, and prone to worship them; their eyes and their hearts were after them; and they needed such cautions and instructions as these, backed with the following strong reason against such idolatry:

I am the Lord your God; their Creator and Benefactor, their covenant God; the only Lord God, and whom only they ought to serve and worship; to whom they were under ten thousand obligations; and who was infinitely above all the idols of Egypt.

(f) "stercoreis diis", Junius & Tremellius, Polanus; "stercoribus", Piscator, Cocceius.