at no time has the Christian God ever been referred to in the plural. That includes biblical scripture
FLASH!
The word Elohim is PLURAL.
What does the commandment say?
Thou shalt have no other gods before me.
Pay careful attention to the wording: it does NOT say, "worship no God but Me because I am the only God there is."
It instead suggests in the wording, that there are other, lesser gods that exist, and you must not treat them as splendidly as Me, the Great Kahuna of all Deities.
You may say prayers to the God of Household Pests to keep his minions out of the house.
You may pray to the Lightening God to not zap your kids, pets and livestock when it rains.
We know that there were household gods, as images of them are found regularly in archeological digs, even in Hebrew settlements.
Of course, Christianity does not proclaim, as does Islam that there is ONE GOD. No. It alludes to THREE deities: the Father, the Son and the Holy Ghost. How can three be one? How can one be three? It is a "Mystery of the Faith". At least that is what St Thomas Aquinas said.
The Christian First Commandment should be modified.
Thou shalt have no Gods before US: And we are three: the Father, the Son and the Holy Ghost.
The household deities suggested by the First Commandment were sort of forgotten and ignored by Christian theologians. They had enough to worry themselves about the Trinity to mess with the Deity of dust mites, or the Lord of Fungi.