Numbers 1:3

You and Aaron are to number those who are twenty years of age or older by their divisions—everyone who can serve in Israel’s army.
BSB · Berean Standard Bible
From twenty years old and upward, all that are able to go forth to war in Israel: thou and Aaron shall number them by their armies.
KJV · King James Version
from twenty years old and upward, all who are able to go out to war in Israel. You and Aaron shall count them by their divisions.
WEB · World English Bible
from twenty years old and upward, all that are able to go forth to war in Israel, thou and Aaron shall number them by their hosts.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

twenty
Numbers 14:29; Numbers 32:11; Exodus 30:14
able
Numbers 26:2; Deuteronomy 3:18; Deuteronomy 24:5; 2 Samuel 24:9; 2 Chronicles 17:13–18; 2 Chronicles 26:11–13
by their
Numbers 33:1; Exodus 12:17