How did GOD punish king David?

Answer 1

David's lust for another man's wife led him into committing adultery - breaking the 7th Command. He also intentionally had her husband killed, in effect breaking the 6th Command. Though David repented deeply and sincerely, God told him the child born out of this illicit union would die - and it did.

God also told David the sword would never depart from his house:-

2 Samuel 12

10 Now therefore the sword shall never depart from thine house; because thou hast despised me, and hast taken the wife of Uriah the Hittite to be thy wife.

David's children were murdered, raped, and exiled.

Answer 2

This sin started a whole line of bad consequences. Yes, their first child died. But, this light view of sin and lust allowed David's son Amnon to force his half-sister Tamar. Tamar's full brother Absalom hated Amnon for it, and murdered Amnon as David did nothing. Then, Absalom tried to steal his father's kingdom, committed adultery with ten of his father's concubines, and died in battle. Later, Absalom's brother Adonijah tries to usurp the throne, and is put to death by Solomon. The wages of sin is death. David reaped these wages fourfold in four of his children: the unnamed infant, Amnon, Absalom, and Adonijah.

Answer 3

Even after david committed adultery with Bathsheba, their first love child died.

Answer 4

The baby that Bathsheba board to David died and then David sister was raped by her brother and sister incestuously