Numbers 4:16-18

American Standard Version

¹⁶ And the charge of Eleazar the son of Aaron the priest shall be the oil for the light, and the sweet incense, and the continual meal-offering, and the anointing oil, the charge of all the tabernacle, and of all that therein is, the sanctuary, and the furniture thereof.

¹⁷ And Jehovah spake unto Moses and unto Aaron, saying, ¹⁸ Cut ye not off the tribe of the families of the Kohathites from among the Levites;