2 Samuel 11:5

Sent and told David. The information was necessary both for her own and David’s safety and for the king’s honor. Both parties in the case of adultery were to be punished by death (Lev. 20:10); hence to escape the penalty, the guilty would naturally seek to conceal the sin. Bath-sheba turned to David for help. If Uriah discovered that his wife was with child by David, he might avenge himself by taking the lives of both David and Bath-sheba, or by inciting the nation to revolt because of such a disgraceful deed on the part of the king.