Numbers 4:15–20

¹⁵And when Aaron and his sons have ended covering the sanctuary, and all the utensils of the sanctuary, when the camp setteth forward, then afterwards the sons of Kohath shall come to carry it; but they shall not touch the holy things, lest they die. This is what the sons of Kohath have to carry in the tent of meeting. ¹⁶And Eleazar the son of Aaron the priest shall have the oversight of the oil for the light, and the fragrant incense, and the continual oblation, and the anointing oil, —the oversight of the whole tabernacle, and of all that is therein, over the sanctuary, and over its furniture. ¹⁷And Jehovah spoke to Moses and to Aaron, saying, ¹⁸Ye shall not cut off the families of the Kohathites from among the Levites, ¹⁹but this shall ye do unto them, that they may live, and not die, when they draw near unto the most holy things: Aaron and his sons shall go in, and appoint them every one to his service and to his burden; ²⁰but they shall not go in and see for a moment the holy things, lest they die.