2 Samuel 12:14 in the King James Version
Howbeit, because by this deed thou hast given great occasion to the enemies of the LORD to blaspheme, the child also that is born unto thee shall surely die.
Context
13 David said to Nathan, “I have sinned against the LORD.” Nathan said to David, “The LORD also has put away your sin. You will not die.
14 However, because by this deed you have given great occasion to the LORD’s enemies to blaspheme, the child also who is born to you will surely die.”
15 Then Nathan departed to his house. The LORD struck the child that Uriah’s wife bore to David, and he was very sick.