Then through marriage they became one again. Even after the fall the marriage was blessed. And God blessed Noah and his sons, and said unto them, Be fruitful, and multiply, and replenish the earth. The first miracle of Jesus ministry happened at a wedding. The following sins prohibited.
Adultery occurs when a married man or a woman has a relationship with another person.
The covenant of marriage is broken, in the presence of God they were married and in the presence of God they broke the covenant. This is a great crime against God. Adultery brings great dishonor to God. The adulterer sets his will above God's law, tramples the commandment of God. Adultery injures the Father, Son and the Holy Spirit.