v1-6: God sent Nathan with his parable, to deal with His servant David. In a few words Nathan painted the picture of the rich man with large flocks, and the poor man with just one lamb.
It seems likely that very few knew of David’s adultery. And few would dare to challenge a king. Nathan’s parable draws David in, with his sense of justice. This leads to his repentance. Had Nathan directly confronted David with his sin, it seems less likely it would have been effective.
David's response was partly correct; a person would have to restore fourfold (Ex 22.1), but should not die for theft. David's refusal to repent affected his attitude towards others, he had become like the rich man, without pity. His disproportionate attitude was triggered by his failure to deal with his own guilt.
v7-8: God had given much to David, but he had wanted something more, that God had not given, and that was improper to take. God would have given more to David. We must look to God to give us every good and perfect gift.
v9: David was also guilty of the death of Uriah; he had done evil.
v10-14: The sins of David would have consequences in his life;
- the sword would never depart from his house; from this point on, David ensured rebellion and strife in his family;
- calamity from within the family; esp. fulfilled in Absalom and Adonijah;
- Absalom lay with David's concubines (16.22);
- David's sins were in secret, and few knew anything of them, but the consequences would be in public;
- the Lord God had put away David's sins, for He is ready to pardon (Neh 8.17). David made no sacrifice, for there was none, and since David was a man of faith;
- the son born to Bathsheba would die.
It is in this section that Psalms 51 and 32 were written; showing David's repentance and his enjoyment of God's forgiveness.
v15-17: The Lord God struck the child, and he became ill. Although God had already told David that the child would die, he prayed constantly for him.
v18-19: David's servant saw how he responded to the child's illness, and were concerned how he would react to the child's death.
v20-23: The child having died, David worshipped God. He recognised that nothing more could be done for the child; we do not pray for those who have died. We do not grieve like those who have no hope (1 Thess 5.13).
There is something of the hand of God in these things; had the child lived, he would have borne the shame of David’s adultery throughout his life. The effects of David’s sins were manifest later, through Amnon and Absalom.
v24-25: David was married to Bathsheba (11.27), and she now bore a son, Solomon. This son reflected something of David's heart, and was therefore loved by God.
v26-31: David returned to the battle, where he should have been months before. Joab had continued to fight, throughout this period.