Numbers 4:30

30 Register men from 30 years old to 50 years old, everyone who is qualified to do the work of the tent of meeting.

Numbers 4:30 In-Context

28 This is the service of the Gershonite clans at the tent of meeting, and their duties will be under the direction of Ithamar son of Aaron the priest.
29 "As for the Merarites, you are to register them by their clans and their ancestral houses.
30 Register men from 30 years old to 50 years old, everyone who is qualified to do the work of the tent of meeting.
31 This is what they are responsible to carry as the whole of their service at the tent of meeting: the supports of the tabernacle, with its crossbars, posts, and bases,
32 the posts of the surrounding courtyard with their bases, tent pegs, and ropes, including all their equipment and all the work related to them. You are to assign by name the items that they are responsible to carry.
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