One more time for you:
So God created man in his own image, in the image of God he created him; male and female he created them. God blessed them and said to them, Be fruitful and increase in number; fill the earth and subdue it. (Gen 1:27-28)
So the LORD God caused a deep sleep to fall upon the man, and he slept; then He took one of his ribs and closed up the flesh at that place. The LORD God fashioned into a woman the rib which He had taken from the man, and brought her to the man. The man said, This is now bone of my bones and flesh of my flesh; she shall be called Woman, because she was taken out of Man. For this reason a man shall leave his father and his mother, and be joined to his wife; and they shall become one flesh. (Gen 2:21-24)
Jesus reaffirms the sacrament of marriage in the NT:
And He answered and said, "Have you not read that He who created them from the beginning MADE THEM MALE AND FEMALE, and said, FOR THIS REASON A MAN SHALL LEAVE HIS FATHER AND MOTHER AND BE JOINED TO HIS WIFE AND THE TWO SHALL BECOME ONE FLESH? So they are no longer two, but one flesh. What therefore God has joined together, let no man separate. (Mt 19:4-6)