2 Samuel 12:1-7 (NIV)
The LORD sent Nathan to David. When he came to him, he said, “There were two men in a certain town, one rich and the other poor. The rich man had a very large number of sheep and cattle, but the poor man had nothing except one little ewe lamb he had bought. He raised it, and it grew up with him and his children. It shared his food, drank from his cup and even slept in his arms. It was like a daughter to him. “Now a traveler came to the rich man, but the rich man refrained from taking one of his own sheep or cattle to prepare a meal for the traveler who had come to him. Instead, he took the ewe lamb that belonged to the poor man and prepared it for the one who had come to him.” David burned with anger against the man and said to Nathan, “As surely as the LORD lives, the man who did this deserves to die! He must pay for that lamb four times over, because he did such a thing and had no pity.” Then Nathan said to David, “You are the man! This is what the LORD, the God of Israel, says: `I anointed you king over Israel, and I delivered you from the hand of Saul.

2 Samuel 12:13-14 (NIV)
Then David said to Nathan, “I have sinned against the LORD.” Nathan replied, “The LORD has taken away your sin. You are not going to die. But because by doing this you have made the enemies of the LORD show utter contempt, the son born to you will die.”

Exodus 33:18-19 (NIV)
Then Moses said, “Now show me your glory.” And the LORD said, “I will cause all my goodness to pass in front of you, and I will proclaim my name, the LORD, in your presence. I will have mercy on whom I will have mercy, and I will have compassion on whom I will have compassion.