Exodus 30:14
Everyone that passes among those who are numbered, from twenty years old and above, shall give an offering to Jehovah.
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.
Numbers 1:18
And they gathered all the congregation on the first day of the second month. And they declared their pedigrees according to their families, by their fathers' house, according to the number of the names, from twenty years old and upward, by their heads.
Numbers 1:20
And the sons of Reuben, Israel's first-born son, by their generations, according to their families, by their fathers' house, according to the number of the names, by their heads, every male from twenty years old and upward, all that were able to go forth to war:
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,
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,