Let each take his censer and put incense in it, and each of you bring his censer before the LORD, two hundred and fifty censers; both you and Aaron, each with his censer."
Numbers 16:17
Surrounding context
16:16 And Moses said to Korah, "Tomorrow, you and all your company be present before the LORD--you and they, as well as Aaron.
16:17 Let each take his censer and put incense in it, and each of you bring his censer before the LORD, two hundred and fifty censers; both you and Aaron, each with his censer."
16:18 So every man took his censer, put fire in it, laid incense on it, and stood at the door of the tabernacle of meeting with Moses and Aaron.