Numbers 19:15 Every open vessel, which has no covering bound on it, is unclean. (See NIV)
2 Kings 12:9 But Jehoiada the priest took a chest, and bored a hole in its lid, and set it beside the altar, on the right side as one comes into the house of Yahweh: and the priests who kept the threshold put therein all the money that was brought into the house of Yahweh. (WEB KJV JPS ASV DBY WBS YLT NAS RSV NIV)