Numbers 16:16-18

¹⁶And Moses saith unto Korah, 'Thou and all thy company, be ye before Jehovah, thou, and they, and Aaron, to-morrow;

¹⁷and take ye each his censer, and ye have put on them perfume, and brought near before Jehovah, each his censer, two hundred and fifty censers; and thou and Aaron, each his censer.'

¹⁸And they take each his censer, and put on them fire, and lay on them perfume, and they stand at the opening of the tent of meeting, with Moses and Aaron.