The first human wedding was performed by Jehovah, as described at Genesis 2:22-24.
And Jehovah God proceeded to build the rib that he had taken from the man into a woman and to bring her to the man.
23
Then the man said:
"This is at last bone of my bones
And flesh of my flesh.
This one will be called Woman,
Because from man this one was taken."
24 That is why a man will leave his father and his mother and he must stick to his wife
Or, "woman."
and they must become one flesh.
(Mark 10:9) Therefore what God yoked together let no man put apart.
In reply he(Jesus) said: "Did YOU not read that he who created them from [the] beginning made them male and female 5 and said, For this reason a man will leave his father and his mother and will stick to his wife, and the two will be one flesh? 6 So that they are no longer two, but one flesh. Therefore, what God has yoked together let no man put apart. matthew 19;4-6 As Jesus pointed out ,it was not Adam, but Jehovah that said a man will leave his parents , so God made the marrage arrangement
(Ephesians 5:31) "For this reason a man will leave [his] father and [his] mother and he will stick to his wife, and the two will become one flesh
monogamy was the original standard for marriage in the eyes of Jehovah God