God is the Creator of mankind and made the man and woman to be united in marriage. Some in church history believe that before the Fall, there was no sexual intercourse, but this is untrue.
Regarding Adam and Eve, when they consummated their covenant, God was not horrified, because He created our bodies for sex.
The words that a man is to “be united to his wife” in Matthew 19:5 are significant in their context in the teachings of Jesus.
The Greek word translated “be united to” or “be joined to” is “proskollethesetai” and is derived from the Greek meaning “to glue or cement together or to inlay or weld.” This word is used throughout the New Testament when referring to physical and sexual conjunction, of social conjunction, and of spiritual relationship.
While marriage was created for companionship and mutual help, it was also created to fulfill the sexual natures of man and woman.