David said, "I have disobeyed the LORD." "Yes, you have!" Nathan answered. "You showed you didn't care what the LORD wanted. He has forgiven you, and you won't die. But your newborn son will."
Didn't God create you to become like one person with your wife? And why did he do this? It was so you would have children, and then lead them to become God's people. Don't ever be unfaithful to your wife.