Joshua 6:17-19

Jericho and everything in it are to be a devoted offering to YAHWEH. But spare Rahab the prostitute and everyone in her house because she hid our spies. You must not take for yourselves anything that is dedicated to YAHWEH or you will bring trouble and destruction to the entire Israelite camp! Everything made of silver, gold, bronze, and iron is sacred and devoted to YAHWEH; place all of it in YAHWEH’s treasury!”