2 Samuel 11:13-15

13Then David invited Uriah to eat and drink with him, and he got Uriah drunk. And in the evening Uriah went out to lie down on his cot with his master’s servants, but he did not go home.

14The next morning David wrote a letter to Joab and sent it with Uriah. 15In the letter he wrote: “Put Uriah at the front of the fiercest battle; then withdraw from him, so that he may be struck down and killed.”