TSK · Numbers 4:37

These are the ordinances, and the iudgements, and the lawes, which the Lorde made betweene him, and the children of Israel in mount Sinai, by the hand of Moses.

From thirtie yere olde and vpward, euen to fiftie yeere olde, euery one that came to doe his duetie, office, seruice and charge in the Tabernacle of the Congregation.