Numbers 1:3
from twenty years old and upward, all that are able to go forth to war in Israel. You and Aaron shall number them by their armies.
Exodus 30:14
Everyone that passes among those who are numbered, from twenty years old and above, shall give an offering to Jehovah.
Numbers 14:29
Your dead bodies shall fall in this wilderness, and all that were numbered of you, according to your whole number, from twenty years old and upward, who have murmured against Me,
Exodus 12:17
And you shall keep the Feast of Unleavened Bread. For in this same day I have brought your armies out of the land of Egypt. Therefore you shall keep this day in your generations by a law forever.
Numbers 26:2
Take the sum of all the congregation of the sons of Israel, from twenty years old and upward, throughout their fathers' house, all that are able to go to war in Israel.
Numbers 32:11
Surely, none of the men that came up out of Egypt, from twenty years old and up, shall see the land which I swore to Abraham, to Isaac, and to Jacob, because they have not fully followed Me,
Numbers 33:1
These are the journeys of the sons of Israel, who went forth out of the land of Egypt with their armies under the hand of Moses and Aaron.
Deuteronomy 3:18
And I commanded you at that time saying, Jehovah your God has given you this land to possess it. You shall pass over armed before your brothers the sons of Israel, all the sons of might.
Deuteronomy 24:5
When a man has taken a new wife, he shall not go out to war, neither shall he be charged with any duty. He shall be free at home one year, and shall cheer up his wife whom he has taken.
2 Samuel 24:9
And Joab gave the sum of the number of the people to the king. And there were in Israel eight hundred thousand strong men who drew the sword. And the men of Judah were five hundred thousand men.
2 Chronicles 17:13-18
And he had much business in the cities of Judah. And the men of war, mighty men of valor, were in Jerusalem.
2 Chronicles 26:11-13
And, Uzziah had an army making war, going out to war by troops, according to the number of their oversight by the hand of Jeiel the scribe and Maaseiah the ruler, under the hand of Hananiah, one of the king's leaders.