Exode 20:3

The second word which came forth from the mouth of the Holy One, whose name be blessed, was like storms, and lightnings, and flames of fire. A burning light was on His right hand and on His left and was borne through the air of the heavens, returned, and was made manifest unto the camp of Israel; it returned, and was engraven on the tables of the covenant, and was turned in them from side to side. Then called He, and said, House of Israel, My people, Thou shalt have no other God beside Me.

THOU SHALT HAVE NO OTHER GODS BEFORE MY FACE. Rashi wrote: “Thou shalt have no other gods. Why is this said?, etc., it already means, “I, am not another.” Why then does He state again, Thou shalt not have other gods before Me? It is because it says, Thou shalt not make unto thee a graven image. From this I would only know that it is forbidden to make an idol. Whence do I know that one may not keep an idol that has already been made? Scripture therefore says, Thou shalt have no other gods.” This is indeed a Beraitha, Note 209. taught in the Mechilta. But if this is so, this verse would constitute a negative commandment in itself, being a prohibition against a person who retains an idol on his premises. [The violation thereof] does not make one liable to the death-penalty by the court. So [the question arises]: Why did He state the prohibition against keeping an idol, which makes one liable to whipping, before [He stated] the prohibition against bowing down to idols or worshipping them, which makes one liable to extinction [if done intentionally but with no witnesses present], or death by the court [if there were witnesses]?
In my opinion, the final decision of the Law is not in accordance with this Beraitha,, Note 209. for it represents the opinion of a single Sage [against the opinion of the majority]. Thus we find it taught in the Sifra: (Leviticus, Chapter 19). On “Sifra,” See above, Note 52. “Nor make ye to yourselves molten gods. I might think that others may make it for you. Scripture therefore says, Nor… to yourselves. From this I know only that [others may not make it] for you, but I might think that you may make it for others. Scripture therefore says, Nor make ye: not for you by others, and not by you for others. It is from here that the Rabbis have derived the principle that he who makes an idol for himself, transgresses two negative commandments: Nor make ye, and Nor… to yourselves. Rabbi Yosei says, ‘He transgresses three negative commandments: Nor make ye, Nor… to yourselves, and also Thou shalt have no other gods.’” Thus you see that Rabbi Yosei’s opinion is that of one against a majority, for it is he who says that the verse Thou shalt have no other gods constitutes a prohibition against retaining an idol [in one’s house]. However, according to the opinion of the first Sage, [which is that of the majority of the Rabbis], it is not …

'לא יהיה לך וגו, for I alone took you out of Egypt.

לא יהיה לך אלוהים, even though you accepted My Kingdom, you must not at the same time also attribute divine qualities to any other servant of Mine. A violation of this commandment is cited in Kings II 17,33 (the subject being the Samarians, a people transplanted by the king of Assyria from Babylon, Chamass, etc., to where the ten tribes of the Northern Kingdom had lived before being exiled by the Assyrians under Tiglat Pilesser. These people are reported as “worshipping the G’d of Israel (as they now were within what they considered to be His domain.) But at the same time they also worshipped other deities. The priest sent by the king of Assyria to teach these Samarians the Jewish religion considered their worshipping the G’d of Israel as quite useless. He told them that unless they worshipped the G’d of Israel exclusively they would likely continue to suffer the incursions of lions, etc.

על פני. It is intolerable to honour the servant in the presence of the Master. If that is so with masters and servants that are mortal, how much more so is it true of Eternal G’d and His underlings.