Exodus 30:14

Everyone who is numbered, from twenty years old and over, shall give the contribution to the Lord.

Numbers 1:3

from twenty years old and upward, whoever is able to go out to war in Israel, you and Aaron shall number them by their armies.

Numbers 1:18

and they assembled all the congregation together on the first of the second month. Then they registered by ancestry in their families, by their fathers’ households, according to the number of names, from twenty years old and upward, head by head,

Numbers 1:20

Now the sons of Reuben, Israel’s firstborn, their genealogical registration by their families, by their fathers’ households, according to the number of names, head by head, every male from twenty years old and upward, whoever was able to go out to war,

Numbers 14:29

your corpses will fall in this wilderness, even all your numbered men, according to your complete number from twenty years old and upward, who have grumbled against Me.

Numbers 26:2

Take a census of all the congregation of the sons of Israel from twenty years old and upward, by their fathers’ households, whoever is able to go out to war in Israel.”

Numbers 32:11

None of the men who came up from Egypt, from twenty years old and upward, shall see the land which I swore to Abraham, to Isaac and to Jacob; for they did not follow Me fully,

Treasury of Scripture Knowledge

Summary

Every one that passeth among them that are numbered, from twenty years old and above, shall give an offering unto the LORD.

Bible References

From twenty

Numbers 1:3
from twenty years old and upward, whoever is able to go out to war in Israel, you and Aaron shall number them by their armies.
Numbers 14:29
your corpses will fall in this wilderness, even all your numbered men, according to your complete number from twenty years old and upward, who have grumbled against Me.
Numbers 26:2
Take a census of all the congregation of the sons of Israel from twenty years old and upward, by their fathers’ households, whoever is able to go out to war in Israel.”
Numbers 32:11
None of the men who came up from Egypt, from twenty years old and upward, shall see the land which I swore to Abraham, to Isaac and to Jacob; for they did not follow Me fully,