1 Chronicles 23:3
Now the Levites were numbered from the age of thirty years and upward: and their number by their polls, man by man, was thirty and eight thousand.
Cross-reference
In 1 Chronicles 23:27, David's final words lower the starting age for Levite service from 30 to 20, directly contrasting the census age here.
Numbers 4:3 specifies the same age range (thirty to fifty) for tabernacle work, confirming the rule applied here.
Numbers 4:23 sets the same age range (thirty to fifty) for Kohathite service, paralleling the census age here.
Numbers 4:30 also requires thirty to fifty years for Merarite service, mirroring the age in this census.
Numbers 4:35 applies the thirty-to-fifty age to Gershonite service, consistent with the Levite census here.
Numbers 4:43 uses the same thirty-to-fifty age for Merarite service, aligning with the count here.
Numbers 4:47 summarizes the thirty-to-fifty age for all Levites, directly matching the census criteria here.
Numbers 8:24 sets service age at twenty-five, contrasting with the thirty-year starting age in this census.