Exodus 30:14
Every one that passeth among them that are numbered, from twenty years old and above, shall give an offering unto the Lord.
Cross-reference
In Exodus 38:24, the gold from this census tax is tallied—showing the collection's result for the sanctuary.
Numbers 1:3 specifies the same age threshold — twenty years old and upward — for military census, connecting the tax requirement to war service.
Numbers 1:18 repeats the age criterion of 20+ for registration by clans, applying the same census rule to all tribes.
Numbers 1:20 lists one tribe's census using the same age requirement — twenty and upward — showing uniform application.
In Numbers 14:29, the same age group of those numbered from twenty years old faces judgment—the census list becomes a death roll for the unfaithful.
In Numbers 26:2, the same age criterion is used for a later census of those able to go to war—echoing the census command.
In Numbers 32:11, the same twenty-year-old and upward group is excluded from the Promised Land—they are the numbered ones who fell.