Numbers 4:24
This shall be the service of the families of Gershon, to minister and to bear burdens:
Numbers 4:15
And when Aaron and his sons have made an end of covering the sanctuary and all the vessels of the sanctuary when the camp is to set forward, after that, the sons of Kohath shall come to bear it, but they shall not touch any holy thing, lest they die. These things are the burden of the sons of Kohath in the tabernacle of the testimony.
Numbers 4:19
but thus do unto them that they may live, and not die, when they approach unto the holy of holies: Aaron and his sons shall come and place each one of them in his ministry and to his burden.
Numbers 4:27
According to the word of Aaron and his sons shall be all the ministry of the sons of the Gershonites, in all their burdens and in all their service; and ye shall appoint unto them in charge all their burdens.
Numbers 4:31-32
And this shall be the charge of their burden, according to all their service in the tabernacle of the testimony: the boards of the tabernacle and the bars thereof and the pillars thereof and sockets thereof,
Numbers 4:47
from thirty years old and upward even unto fifty years old, every one that entered in to serve in the service and to bear a burden in the tabernacle of the testimony,
Numbers 4:49
As the LORD commanded by the hand of Moses, they were numbered, each one according to his ministry and according to his burden; thus were they numbered of Moses, as the LORD commanded him.