Numbers 3:6-9 describes the original appointment of Levites to minister to Aaron — the same calling Hezekiah here reminds them of.

Numbers 8:6-14 details the cleansing and ordination of Levites for service — foundational to their calling mentioned here.

Numbers 18:2-6 reiterates the Levites' role as a gift to serve the priests — directly parallel to the ministry Hezekiah calls them to.

Deuteronomy 10:8 states the LORD set apart Levi to stand before Him and minister — the exact role Hezekiah recalls here.

Luke 1:9 shows Zechariah burning incense by lot, a direct example of the priestly duty Hezekiah commands.

Numbers 18:7 addresses priests guarding the altar — related to the service Hezekiah calls for, though here Levites are addressed.

Numbers 16:35-40 recounts judgment on unauthorized incense offering — underscoring the seriousness of the priestly duty Hezekiah calls them to.