Numbers 7:8

And four wagons and eight oxen he gave to the sons of Merari,.... All the remaining wagons and oxen, which were double the number given to the Gershonites:

according unto their service; being much heavier than theirs, having all the boards, pillars, sockets, pins; cords, c. to bear and carry: thus Moses was directed of God wisely to dispose of those carriages, in proportion to the services each was employed in and in a spiritual way, as the day, duty, and service of the people of God be, he proportions grace and strength to them to answer thereunto:

under the hand of Ithamar the son of Aaron the priest; under whose care, inspection, and direction, were both the Gershonites and Merarites, Numbers 4:28; and by whom were delivered, according to the instruction of Moses, the several wagons and oxen, to them.