Does the definite article before Elohim refer to other spiritual entities?
No.
Most often Elohim refers to the true God. But sometimes it refers to other entities. The definite article has nothing to do with true God or other entities! It is the grammar or context that determines it.
True Elohim with Definite Article
“For thus says Yahweh who created the heavens – He is God (Hu
Ha Elohim) who formed the earth and made it. He has not established it in vain, who did create it to be inhabited, who formed it. I am
Yahweh and there is no other” (Isaiah 45:18; Interlinear Bible Hub).
Nobody can say that Isaiah 45:18 is talking about “other spiritual entities”. It talks about the One true God. In fact, it is Yahweh who is speaking here.
[“Hu HaElohim” cannot be translated into English as “the He is God”! Literally, it has to be “He is the God”, but this is not proper in English].
Yet we see the definite article “Ha” together with Elohim; HaElohim, the true God.
Other elohim without Definite Article
“You shall not have any other gods (elohim) before Me” (Exo 20:3).
Surely, other gods are not true God. Yet the word elohim to refer to them is without the definite article.
Conclusion
So, it is clear, the definite article can not be used to identify the true God or “other entities”.
True Elohim Uses Plural Verb.
Mostly, the true God Elohim uses singular verb. But there are a few occasions when the Scripture uses plural verb with true God.
Abraham tells Abimelech:
“And it happened when God (Elohim) made me wander (“hithu” is plural)
from my father’s house……” (Gen 20:13).
Adam Clarke commentary:-
“Here the word אלהים Elohim is used with a plural verb, (התעו
hithu, caused me to wander), which is not very usual in the Hebrew
language, as this plural noun is generally joined with verbs in the
singular number”.
[There are more instances like this. I think one will suffice here].
Genesis 6:2 talks about the True God
Genesis 6th chapter is a continuation of the 4th chapter. Chapter 5 is just an inset in between. The story continues from chapter 4 into chapter 6.
The last verse in chapter 4 says:
“And a son was also born to Seth, and he called his name, Enos. Then
it was begun to call on the name of Yahweh.”
There is a marginal reading here that says:
“Then began men to call themselves by the name Yahweh” (various
commentaries).
And how did they call themselves?
“Sons of God”.
This is similar to “people of God”, “prophets of God”, “saints of God”, “the Church of God” etc.
This was the very first group of people who followed the true God in history under the leadership of Seth. But soon, as usual, they faltered when they married beautiful women from the unbelievers’ camp (Gen 6:2).
It is then God said:
“My Spirit shall not always strive with man” (verse 3).
So Genesis 6:2 is not the “sons of the gods”.