Deuteronomy 23:12 in the World English Bible
You shall have a place also outside of the camp where you go relieve yourself.
Context
11 But it shall be, when evening cometh on, he shall wash himself with water: and when the sun is down, he shall come into the camp again.
12 Thou shalt have a place also without the camp, whither thou shalt go forth abroad:
13 And thou shalt have a paddle upon thy weapon; and it shall be, when thou wilt ease thyself abroad, thou shalt dig therewith, and shalt turn back and cover that which cometh from thee: