Numbers 8:22-26 And afterward the Levites came to serve their service in the tent of appointment before Aaron and before his sons. Just as Yahweh had instructed Moses concerning the Levites, so they dealt with them.

CLV⁽ⁱ⁾ ²² And afterward the Levites came to serve their service in the tent of appointment before Aaron and before his sons. Just as Yahweh had instructed Moses concerning the Levites, so they dealt with them. ²³ Yahweh spoke to Moses, saying. ²⁴ This is what applies to the Levites. From twenty-five years old and upward may one come to enlist with the Levitical host in the service of the tent of appointment. ²⁵ And from fifty years old shall one retire from the active service in the Levitical host and shall serve no longer; ²⁶ yet he may minister to his brothers in the tent of appointment, so as to keep guard, though in active service he shall not serve. Thus shall you deal with the Levites in regard to their charges.