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 “Haven’t 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!
Good research! Never heard of this comparison.