NET
23 They and their descendants were assigned to guard the gates of the Lord’s sanctuary (that is, the tabernacle).
Darby
23 And they and their sons were at the gates of the house of Jehovah, the house of the tent, to keep watch there.
KJV
23 So they and their children [had] the oversight of the gates of the house of the LORD, [namely], the house of the tabernacle, by wards.