15 Then Nathan went to his house. And the Lord struck the child that Uri'ah's wife bore to David, and it became sick. 16 David therefore besought God for the child; and David fasted, and went in and lay all night upon the ground. 17 And the elders of his house stood beside him, to raise him from the ground; but he would not, nor did he eat food with them. 18 On the seventh day the child died. And the servants of David feared to tell him that the child was dead; for they said, "Behold, while the child was yet alive, we spoke to him, and he did not listen to us; how then can we say to him the child is dead? He may do himself some harm." 19 But when David saw that his servants were whispering together, David perceived that the child was dead; and David said to his servants, "Is the child dead?" They said, "He is dead."
Matthew Henry's Commentary on 2 Samuel 12:15-19
Commentary on 2 Samuel 12:15-25
(Read 2 Samuel 12:15-25)
David now penned the 51st Psalm, in which, though he had been assured that his sin was pardoned, he prays earnestly for pardon, and greatly laments his sin. He was willing to bear the shame of it, to have it ever before him, to be continually upbraided with it. God gives us leave to be earnest with him in prayer for particular blessings, from trust in his power and general mercy, though we have no particular promise to build upon. David patiently submitted to the will of God in the death of one child, and God made up the loss to his advantage, in the birth of another. The way to have creature comforts continued or restored, or the loss made up some other way, is cheerfully to resign them to God. God, by his grace, particularly owned and favoured that son, and ordered him to be called Jedidiah, Beloved of the Lord. Our prayers for our children are graciously and as fully answered when some of them die in their infancy, for they are well taken care of, and when others live, "beloved of the Lord."