You're either watching too much Kenneth Copeland or reading Mormon literature.
Elohim is the plural form of elowahh, the root of which is ALH, meaning "to swear," and describes one that stands in a covenant relationship ratified by an oath. Strong's #433 - אֱלֹהַּ - Old Testament Hebrew Lexical Dictionary - StudyLight.org .
So man was made plural, male and female, and they are made to live and work together in a covenant relationship ratified by an oath, iow, marriage.
God, one God, three Persons. Man, one flesh, two persons. (Three if you count the Spirit of God)
The Son and the Spirit proceed from the Father. The wo man was taken from man, but that is not what is meant by one flesh.
They did not become one flesh until the ceremony and the pronouncement of the oath to ratify their covenant relationship. God brought the woman to the man, and in the company of God and witnesses the man entered into covenant with the woman, and the woman got her name, from the oath:
There is the image of the invisible God.
"This now bone of my bone, and flesh of my flesh. She shall be called woman, because she was taken out of man."
Your thoughts?
And God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth. So God created man in his own image, in the image of God created he him; male and female created he them. Gen 26,27 KJV
What happened to the likeness? ? Before God created Adam did he do so with the old man and new man. on mind?
John 3:6 KJV That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.
John 3:3,5 KJV Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God. Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.
But one in a certain place testified, saying, What is man, that thou art mindful of him? or the son of man, that thou visitest him? Thou madest him a little lower than the angels; thou crownedst him with glory and honour, and didst set him over the works of thy hands: Thou hast put all things in subjection under his feet. For in that he put all in subjection under him, he left nothing that is not put under him. But now we see not yet all things put under him. Heb 2:6-8
The first man is of the earth, earthy: the second man is the Lord from heaven. 1 Cor 15:47
Interestingly the only other place I have found the phrase, after the likeness of God used is here and is relative to what we speak.
James 3:8,9 But the tongue can no man tame; it is an unruly evil, full of deadly poison. Therewith bless we God, even the Father; and therewith curse we men, which are made after the similitude of God.