Numbers 16:4

16:4 When Moses heard it he fell down with his face to the ground.

Numbers 14:5

14:5 Then Moses and Aaron fell down with their faces to the ground before the whole assembled community of the Israelites.

Numbers 35:23

35:23 or with any stone large enough that a man could die, without seeing him, and throws it at him, and he dies, even though he was not his enemy nor sought his harm,