Numbers 1:3
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.
Exodus 30:14
Anyone that passes among those that are numbered, from twenty years old and above, shall give the offering unto the LORD.
Numbers 14:29
Your carcasses shall fall in this wilderness, 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 ye shall observe the feast of unleavened bread, for in this same day have I brought your hosts out of the land of Egypt; therefore, shall ye observe this day for your ages by an ordinance forever.
Numbers 26:2
Take the sum of all the congregation of the sons of Israel, from twenty years old and upward, by the houses of their fathers, 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 upward, shall see the land which I swore unto Abraham, unto Isaac, and unto Jacob; because they were not perfect in following me,
Numbers 33:1
These are the journeys of the sons of Israel who went forth out of the land of Egypt with their hosts under the hand of Moses and Aaron.
Deuteronomy 3:18
And I commanded you at that time, saying, The LORD your God has given you this land to possess it; ye shall pass armed before your brethren, the sons of Israel, all that are valiant.
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 business; but 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 up the sum of the number of the people unto the king, and there were in Israel eight hundred thousand valiant men that drew the sword, and the men of Judah were five hundred thousand men.
2 Chronicles 17:13-18
And he had many works in the cities of Judah and men of war, mighty men of valour, in Jerusalem.
2 Chronicles 26:11-13
Moreover Uzziah had an army of fighting men that went out to war in companies, according to the number of their account by the hand of Jeiel, the scribe, and Maaseiah, the governor, under the hand of Hananiah, one of the king's princes.