"Let US make man in OUR image..."
(I'm sure the Jews have an explanation...)
Let's let Jesus answer that, shall we?
Jesus:
16 And I will ask the Father, and he will give you ANOTHER advocate to help you and be with you forever 17 the Spirit of truth. The world cannot accept him, because it neither sees him nor knows him. But you know him, for he lives with you and will be in you...26 But the Advocate, the Holy Spirit, whom the Father will send in my name, will teach you all things and will remind you of everything I have said to you. (John 14:16-17, 26)
Here's more from Jesus:
13 But when he, the Spirit of truth, comes, he will guide you into all the truth. He will not speak on his own; he will speak only what he hears, and he will tell you what is yet to come. 14 He will glorify me because it is from me that he will receive what he will make known to you. 15 All that belongs to the Father is mine. That is why I said the Spirit will receive from me what he will make known to you. (John 16:13-15)
You're not saying here that the Father is both the Sender and the Sendee here, are you?
Response:
Yachid vs. Echad The most important verse Jews memorized in the Bible was Deut 6:4: "Hear, O Israel! Yahweh is our God, Yahweh is one [Echad]!" There are a few words in Hebrew that the Holy Spirit could have used a word the has one exclusive meaning: the numeric, solitary oneness of God ("yachid" or "bad"). Instead the Holy Spirit chose to use the Hebrew word, "echad" which is used most often as a unified one, and sometimes as numeric oneness. For example, when God said in Genesis 2:24 "the two shall become one [echad] flesh" it is the same word for "one" that was used in Deut 6:4.
Source: Trinity: Oneness in unity not in number: Yachid vs. Echad
Hence, just as husband and wife is 2-in-1..."Echad" the word for "one" in that verse (Gen. 2:24)...and Jesus cites it in Matthew 19...saying:
4 Havent you read, he replied, that at the beginning the Creator made them male and female,[a] 5 and said, For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh? 6 So they are no longer two, but one flesh. Therefore what God has joined together, let no one separate.
There ya go: Jesus cites Gen. 2:24 in Matt. 19:4-5...even using the "one flesh"...and then adds for emphasis in v. 6: "So they are NO LONGER TWO, but ONE...Therefore what God has joined together, let NO ONE SEPARATE."
What? Are you now claiming that a human couple is more "one" than God is with His Son or the Holy Spirit?
Or, are you going to insist that "Echad" doesn't mean diversity-within-Unity?
Just as Jesus told us NOT to regard a married couple any longer as two -- a basic math issue a primary school kid & most pre-schoolers can get down pat -- don't regard God as "two" (or more), either.
What God organically is -- ONE -- let no man separate!