In Leviticus 23:2, the Lord establishes the pattern of 'holy convocations' that this verse follows as one of the appointed feasts.

In Leviticus 23:35, the Feast of Booths also commands a holy convocation with no work, mirroring the same instructions.

In Leviticus 23:39, the Feast of Booths again uses 'holy convocation' for its first and eighth days, echoing this verse's language.

Leviticus 25:9 also commands trumpet blasts on the tenth day of the seventh month, a related but distinct observance.

Numbers 10:10 explains the use of trumpets at feasts and new moons, expanding the 'memorial of blowing of trumpets' from Leviticus.

Numbers 29:1-6 details the offerings for the same Feast of Trumpets, providing the sacrificial regulations for the day described in Leviticus.

Ezra 3:6 records the exiles observing this same Feast of Trumpets on the first day of the seventh month.

Psalm 81:1-4 commands sounding the ram's horn at the New Moon festival, directly referencing this feast.

In Nehemiah 8:2, Ezra reads the Law on the first day of the seventh month — the very day this verse appoints as a holy convocation.

In Nehemiah 8:9, the leaders declare that same day holy to the Lord, directly applying the command of this verse.

In Psalm 81:3, blowing the trumpet at the new moon matches the trumpet blast on the first day of the seventh month here.

Colossians 2:16 warns against judgment regarding holy days, new moons, or Sabbaths — directly addressing the OT festival system including the feast of trumpets.

In Exodus 12:16, the same phrase 'holy convocation' and prohibition of work appears for Passover, showing parallel feast regulations.

In 1 Chronicles 23:31, the Levites' duties include appointed feasts and new moons, which encompass the Feast of Trumpets described here.

In Ezra 3:1, the people gather in the seventh month, the same month as this feast, though the exact day is not specified.