This [is it] that [belongeth] unto the
Levites: from twenty and five years old and upward they shall go in to wait
upon the service of the tabernacle of the congregation:
BSB
“This applies to the Levites: Men twenty-five years of age or older shall enter to perform the service in the work at the Tent of Meeting.
WEB
“This is that which belongs to the Levites: from twenty-five years old and upward they shall go in to wait on the service in the work of the Tent of Meeting;
YLT
This is that which is the Levites’: from a son of five and twenty years and upward he doth go in to serve the host in the service of the tent of meeting,