We have established that Yahweh is an Elohim (singular) and he is a part of the Elohim (plural) and that there are other Elohim (plural). What is not often talked about is that there are other Elohim mentioned in the Bible besides Yahweh.
Because that they have forsaken me, and have bowed down to Ashtoreth the Elohim of the Sidonians, to Chemosh the Elohim of the Moabites, and Milcom the Elohim of the sons of Ammon, and they have not walked in my ways, to do that which is right in my eyes, and to keep my statutes and my judgments, as did David his father. (1Ki 11:33, my translation)
In this verse we are given the names of the Elohim for each nation and two verses prior to this one, we read who the Elohim of the nation of Israel is.
And he said to Jeroboam, Take for yourself ten pieces, for thus Yahweh the Elohim of Israel has said, "Behold, I will tear the kingdom from the hand of Solomon, and I will give to you ten tribes. (1 Kings 11:31, my translation)
The Elohim of Israel is “Yahweh” and in many places throughout the Bible Yahweh commands Israel to not go after the other Elohim of the other nations.
You shall not go after other Elohim, the Elohim of the people which are round about you. (Deuteronomy 6:14, LT)
And Yahweh will scatter you among all people, from one end of the earth unto the other; and there you will serve other Elohim, which neither you nor your fathers have known, even wood and stone. (Deuteronomy 28:64,LT)
Lest there should be among you man, or woman, or family, or tribe, whose heart turns away this day from Yahweh our Elohim, to go and serve the Elohim of these nations. (Deuteronomy 29:18, LT)
And Joshua said unto all the people, Thus says Yahweh the Elohim of Israel, Your fathers dwelt on the other side of the flood in old time, even Terah, the father of Abraham, and the father of Nachor: and they served other Elohim. (Joshua 24:2, LT)
Has any of the Elohim of the nations delivered at all his land out of the hand of the king of Assyria? (2 Kings 18:33, LT)
Note that nowhere in the Bible does it say that Yahweh is the only “Elohim", but it does say that Israel is to serve only Yahweh as “their” Elohim.
And I will take you to me for a people, and I will be to you a God (Elohim); and ye shall know that I am Yahweh your God (Elohim), who bringeth you out from under the burdens of the Egyptians. (Exodus 6:7)
For you shall worship no other god (Elohim): for Yahweh, whose name is Jealous, is a jealous god (Elohim). (Exodus 34:14)
You shall have no other gods (Elohim) besides me. (Exodus 20:3)
Make no mention of the name of other gods (Elohim). (Exodus 23:13)
If you forget Yahweh your god (Elohim), and walk after other gods (Elohim), and serve them, and worship them, I testify against you this day that you shall surely perish. (Deuteronomy 8:19)
Choose you this day whom you will serve; whether the god (Elohim) which your fathers served that were on the other side of the flood, or the god (Elohim) of the Amorites, in whose land you dwell: but as for me and my house, we will serve Yahweh. (Joshua 24:15)
I am Yahweh your god (Elohim); do not fear the god (Elohim) of the Amorites. (Judges 6:10)
It should also be noted that when Israel was taken into Egypt, Yahweh did not go there, but instead sent Moses as his messenger. Was Yahweh bound to his boundary and therefore not able to cross over himself into the land of Egypt, the land of another Elohim?