1 Chronicles 23:3 counts Levites from age thirty, directly contrasting the twenty-year threshold in this verse.

1 Chronicles 23:27 confirms David’s last instructions established this same age of twenty for Levite service.

In 1 Chronicles 24:4, the counting of Levites in 23:24 is applied specifically to priestly divisions, with numbers for Eleazar and Ithamar.

1 Chronicles 24:6 continues the registration theme, recording how the priestly divisions were officially listed by Shemaiah.

1 Chronicles 26:32 expands the census to Levites for outside duties, mirroring the same counting of capable men.

Numbers 3:20 lists the same sons of Merari (Mahli, Mushi) that appear in the genealogy preceding this census verse.

Numbers 4:34-49 records a similar census of Levites for tabernacle service, but with a 30‑ to 50‑year age range instead of 20+.

Ezra 3:8 also appoints Levites twenty years and older to oversee temple rebuilding, paralleling this age criterion.

2 Chronicles 31:17 echoes the same age threshold ('from twenty years old and upward') for Levite registration, showing continued practice.

Numbers 4:3 restricts Levite service to those thirty and older, differing from the twenty-year minimum here.

Numbers 8:24 sets the Levite service age at twenty-five, contrasting with the twenty-year minimum given here.

Numbers 3:15 also numbers Levites but from one month old — contrasting with the 20‑year minimum for service here.

Numbers 4:3 restricts Levite service to those thirty and older, differing from the twenty-year minimum here.

Numbers 1:3 likewise counts men twenty years old and older for military service in Israel.

Numbers 1:18 also records counting men twenty years and older, but for the military census of all Israel, not specifically Levites.

Numbers 1:22 similarly lists men twenty years and older from the tribe of Simeon for army service.