Numbers 16:18, 46

So every man took his censer and put fire in them and laid incense on them and stood at the entrance of the tent of meeting with Moses and Aaron.

And Moses said to Aaron, “Take your censer, and put fire on it from off the altar and lay incense on it and carry it quickly to the congregation and make atonement for them, for wrath has gone out from the LORD; the plague has begun.”