In the beginning, the wedding ceremony was very simple.
So the LORD God caused the man to fall into a deep sleep, and while he slept, He took one of the man’s ribs and closed up the area with flesh. And from the rib that the LORD God had taken from the man, He made a woman and brought her to him. And the man said:
“This is now bone of my bones
and flesh of my flesh;
she shall be called ‘woman,’
for out of man she was taken.”For this reason a man will leave his father and mother and be united to his wife, and they will become one flesh.
Genesis 2:23-24
And...
Jesus answered, “Have you not read that from the beginning the Creator ‘made them male and female,’ 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’? So they are no longer two, but one flesh. Therefore what God has joined together, let man not separate.”
Matt 19:4-6
There were about 20 generations from Adam to Abraham. During this time, there is very little evidence of any ritual or ceremony accompanying the process of marriage.
When Isaac married Rebekah there was at least one ritual added to his marriage ceremony. But it was still a relatively simple act:
And Isaac brought her into the tent of his mother Sarah and took Rebekah as his wife. And Isaac loved her and was comforted after his mother’s death.
Genesis 24:67
No doubt, a multitude of other rituals and customs were added in the generations that followed.
Some today will cite "the Jewish Wedding model" as a template for interpreting eschatological events. While many of these traditions contain metaphors that allude to the Tanakh (Jewish Scriptures), they weren't prescribed there. They came after.