2 Samuel 11:13-15

13Then David invited him to dinner and got him drunk. But even then he couldn’t get Uriah to go home to his wife. Again he slept at the palace entrance with the king’s palace guard.

14So the next morning David wrote a letter to Joab and gave it to Uriah to deliver.

15The letter instructed Joab, “Station Uriah on the front lines where the battle is fiercest. Then pull back so that he will be killed.”