Parallel
Numbers 4:23
Swete's Septuagint · Berean Standard Bible
ἀπὸ πέντε καὶ εἰκοσαετοῦς καὶ ἐπάνω ἕως πεντηκονταετοῦς ἐπίσκεψαι αὐτούς, πᾶς ὁ εἰσπορευόμενος λειτουργεῖν, ποιεῖν τὰ ἔργα αὐτοῦ ἐν τῇ σκηνῇ τοῦ μαρτυρίου.
from thirty to fifty years old, counting everyone who comes to serve in the work at the Tent of Meeting.