2 Samuel 11:12-13
12-13"All right," said David, "have it your way. Stay for the day and I'll send you back tomorrow." So Uriah stayed in Jerusalem the rest of the day.
The next day David invited him to eat and drink with him, and David got him drunk. But in the evening Uriah again went out and slept with his master's servants. He didn't go home.
14-15In the morning David wrote a letter to Joab and sent it with Uriah. In the letter he wrote, "Put Uriah in the front lines where the fighting is the fiercest. Then pull back and leave him exposed so that he's sure to be killed."