Leviticus 25:9

You must sound loud horn blasts ¹  – in the seventh month, on the tenth day of the month, on the Day of Atonement – you must sound the horn in your entire land.

Le 16:20,30; Le 23:24,27; Le 25:10-12; Le 27:17,24; Nu 10:10; Nu 36:4; Ps 89:15; Ac 13:38,39; Ro 10:18; Ro 15:19; 2Co 5:19-21; 1Th 1:8

¹ sn On the “loud horn blasts” see the note on Lev 23:24, but unlike the language there, the Hebrew term for “horn” (שׁוֹפָר, shofar) actually appears here in this verse (twice).