Treasury of Scripture Knowledge

Summary

But those that encamp before the tabernacle toward the east, even before the tabernacle of the congregation eastward, shall be Moses, and Aaron and his sons, keeping the charge of the sanctuary for the charge of the children of Israel; and the stranger that cometh nigh shall be put to death.

For the charge

Bible References

Toward

Numbers 3:23
The families descended from Gershon put up their tents on the west side behind the tent of meeting.
Numbers 1:53
The Levites will camp all around the tent of God's words. In this way Jehovah will not be angry with the congregation of Israel. So the Levites will be in charge of the tent of God's words.
Numbers 2:3
On the east side, facing the rising sun, the armies led by Judah will camp under their flag. The leader for the people of Judah is Nahshon, son of Amminadab.

Keeping

Numbers 3:10
Appoint Aaron and his sons to serve as priests. Anyone else who tries to do the priests' duties must be put to death.
Numbers 18:1
Jehovah said to Aaron: You, your sons, and your family will be responsible for any sins against the holy place. You and your sons will also be responsible for any sins you commit when you work as priests.
1 Chronicles 6:48
Their fellow Levites was assigned to all the other duties of the tabernacle, the house of God.

For the charge

Numbers 3:7
They will work for him and the whole community in front of the tent of meeting, doing what needs to be done for the inner tent.