Numbers 19:14-16

ECB(i) 14 This is the torah, when a human dies in a tent: all who come into the tent and all inside the tent, becomes foul seven days: 15 and every open instrument, with no clasp braided thereon, becomes foul: 16 and whoever touches someone pierced with a sword in the face of the fields, or that died, or a bone of a human, or a tomb, becomes foul seven days.