The Lord struck the child With some sudden and dangerous distemper. David besought God for the child Supposing the threatening might be conditional, and so the execution of it prevented by prayer. And went in Namely, into his closet to pray, solitarily and earnestly. Or, perhaps, into the sanctuary, where the ark of God was; where he lay all night on the earth Humbling himself, mourning, repenting, weeping, praying, with all the agonies of the most bitter grief.
Related Commentaries of 2 Samuel 12:15
2 Samuel 12:15-16
15 And Nathan departed unto his house. And the LORD struck the child that Uriah's wife bare unto David, and it was very sick.
16 David therefore besought God for the child; and David fasted,b and went in, and lay all night upon the earth.