Eleazar son of Aaron the priest shall oversee the oil for the light, the fragrant incense, the daily grain offering, and the anointing oil. He has oversight of the entire tabernacle and everything in it, including the holy objects and their utensils.”
We have here a second muster of the tribe of Levi. As that tribe was taken out of all Israel to be God's peculiar, so the middle-aged men of that tribe were taken from among the rest to be actually employed in the service of the tabernacle. Now observe, I. Who were to be taken into this number. All the males from thirty years old to fifty.
Commenting on Numbers 4:1-20
And the Lord spake unto Moses, and unto Aaron,.... And gave them a very solemn and awful charge about this affair of the Kohathites, it being a very hazardous one they were employed in: saying; as follows.
to the office of Eleazar . . . pertaineth the oil for the light, and the sweet incense, &c.--He was charged with the special duty of superintending the squadron who were employed in the carrying of the sacred furniture; besides, to his personal care were committed the materials requisite for the daily service, and which it was necessary he should have easily at his command (Exo 29:38).