Numbers 17:6-9

So Moses spoke to the Israelites, and each of their leaders gave him a staff, one for each leader, according to their tribes – twelve staffs; the staff of Aaron was among their staffs. Then Moses placed the staffs before the LORD in the tent of the testimony. On the next day Moses went into the tent of the testimony – and the staff of Aaron for the house of Levi had sprouted, and brought forth buds, and produced blossoms, and yielded almonds! So Moses brought out all the staffs from before the LORD to all the Israelites. They looked at them, and each man took his staff.