Exodus 30:14
Every man being counted in the census who is twenty years old or older is to pay me this amount.
Numbers 1:3
who is at least twenty years old. You and Aaron must register everyone in Israel who is eligible for military duty. List them by divisions.
Numbers 1:18
and assembled the whole congregation on the first day of the second month. Each man at least twenty years old provided his genealogy by family and household. Then his name was listed.
Numbers 1:20
The roster of families and households for the descendants of Reuben, Israel's firstborn son, listed every man by name that was at least twenty years old and eligible for military duty.
Numbers 14:29
Your bodies will drop dead in this desert. All of you who are at least twenty years old, who were registered and listed, and who complained about me will die.
Numbers 26:2
Take a census of the entire congregation of Israel by households. List those who are at least twenty years old and eligible for military duty.
Numbers 32:11
None of the people twenty years old or older, who came from Egypt, will see the land I promised Abraham, Isaac, and Jacob with an oath. This is because they did not wholeheartedly follow me.