Numbers 16:18

16:18 So everyone took his censer, put fire in it, and set incense on it, and stood at the entrance of the tent of meeting, with Moses and Aaron.

Numbers 16:46

16:46 Then Moses said to Aaron, “Take the censer, put burning coals from the altar in it, place incense on it, and go quickly into the assembly and make atonement for them, for wrath has gone out from the Lord – the plague has begun!”