keep
1 Chronicles 9:27
And they lodged round about the house of God, because the charge was upon them, and the opening thereof every morning pertained to them.
Numbers 1:53
But the Levites shall pitch round about the tabernacle of testimony, that there be no wrath upon the congregation of the children of Israel: and the Levites shall keep the charge of the tabernacle of testimony.
1 Kings 8:4
And they brought up the ark of the LORD, and the tabernacle of the congregation, and all the holy vessels that were in the tabernacle, even those did the priests and the Levites bring up.
the charge of the sons
Numbers 3:6-9
6
Bring the tribe of Levi near, and present them before Aaron the priest, that they may minister unto him.
7
And they shall keep his charge, and the charge of the whole congregation before the tabernacle of the congregation, to do the service of the tabernacle.
8
And they shall keep all the instruments of the tabernacle of the congregation, and the charge of the children of Israel, to do the service of the tabernacle.
9
And thou shalt give the Levites unto Aaron and to his sons: they are wholly given unto him out of the children of Israel.
Numbers 3:38-9