2 Chronicles 31:2 describes Hezekiah appointing divisions; this verse then enrolls the priests and Levites for those divisions.

Numbers 4:3 sets Kohathite service at 30-50, contrasting with the 20-year start here.

Numbers 4:42 lists Levites of Merari from 30-50, contrasting with the 20-year minimum here.

Numbers 4:46 summarizes all Levites aged 30-50, a different age than the 20-year-old enrollment here.

Numbers 8:24 sets Levite service age at 25, showing a different minimum than the 20-year age here.

1 Chronicles 23:24 also enrolls Levites from twenty years old by fathers' houses, directly paralleling this account.

1 Chronicles 23:27 records David numbering Levites from twenty years old, paralleling Hezekiah's same-age enrollment.

1 Chronicles 24:20-31 lists Levite family divisions, providing the genealogical basis for the registration in 2 Chronicles 31:17.

Numbers 3:15 numbers all Levite males from one month old, contrasting with the twenty-year minimum for service in this verse.

Numbers 3:20 lists the Merari families, part of the genealogical divisions that this verse organizes by house of fathers.

Numbers 4:38 numbers the Gershonites for tabernacle service, paralleling the organization of Levites by charges in this verse.