2 Samuel 11:15

And he wrote in the letter, saying, set ye Uriah in the forefront of the hottest battle, opposite the place where the most bitter attack might be expected, and retire ye from him, falling away from behind him while he was busily engaged in warding off the blows of the attacking enemies, that he may be smitten and die. His own bravery being of a kind to he relied upon at all times, and his retreat cut off, the supposition was that Uriah would surely fall.