Exodus 30:14
Every one that passeth among those that are numbered, from twenty years old and above, shall give the heave-offering of Jehovah.
Numbers 1:3
from twenty years and upward, all that go forth to military service in Israel: ye shall number them according to their hosts, thou and Aaron.
Numbers 1:18
and gathered the whole assembly together on the first of the second month. And they declared their pedigrees after their families, according to their fathers' houses, by the number of the names, from twenty years old and upward, according to their polls.
Numbers 1:20
And the sons of Reuben, Israel's eldest son, their generations, after their families, according to their fathers' houses, by the number of the names, according to their polls, every male from twenty years old and upward, all that went forth to military service:
Numbers 14:29
In this wilderness shall your carcases fall; and all that were numbered of you, according to your whole number from twenty years old and upwards, who have murmured against me,
Numbers 26:2
Take the sum of the whole assembly of the children of Israel, from twenty years old and upward, according to their fathers' houses, all that go forth to military service in Israel.
Numbers 32:11
If the men that came up out of Egypt, from twenty years old and upward, shall see the land that I swore to Abraham, to Isaac, and to Jacob! for they have not wholly followed me;