בַּ֭חֲצֹ֣צְרוֹת וְק֣וֹל שׁוֹפָ֑ר הָ֝רִ֗יעוּ לִפְנֵ֤י ׀ הַמֶּ֬לֶךְ יְהוָֽה׃
나팔과 호각으로 왕 여호와 앞에 즐거이 소리할지어다
Mishneh Torah, Shofar, Sukkah and Lulav
In the Temple on Rosh Hashanah, they would blow with one shofar and two trumpets [on its two] sides. The shofar would blow long and the trumpets would blow short, since the commandment of the day was with the shofar. And why would they blow it together with trumpets? Because it is stated (Psalms 98:6), "With trumpets and the blast of the shofar blow before the Lord, the King." But in other places on Rosh Hashanah, we only blow with a shofar exclusively.
Mishneh Torah, Fasts
And it is (a rabbinic commandment) from the words of the Scribes to fast for each trouble that comes upon the community until they are granted mercy from the Heavens. And on these fast days, we yell out with prayers and supplicate and sound only the trumpets. And if they were in the Temple, they would sound trumpets and the shofar. The shofar blows short and the trumpets blow long, since the commandment of the day is with trumpets. And we only blow with the trumpets and the shofar at the same time in the Temple, as it is stated (Psalms 78:6), "With trumpets and the blast of the horn raise a shout before the Lord, the King."
Mishneh Torah, Shofar, Sukkah and Lulav
We may not mention malkhiot, zikhronot and shofarot of punishment — such as [in] zikhronot, "And all flesh shall remember that, etc." (Psalms 78:39); [in] malkhiot, "with outpoured anger shall I rule over you" (Ezekiel 20:33); [and in] shofarot, "Blow the shofar on the mountain, etc." (Hosea 5:8). Nor [may we mention] the remembrance of an individual — even if it was for good — such as "Remember me, O Lord, in the desire of Your people" (Psalms 106:4); and "Remember me, my God, for the good" (Nehemiah 13:31). And recollections (pikdonot) — such as "I have surely recalled you" (Exodus 3:16) — are not the same as remembrances. But one may mention the punishment of idolatrous nations, such as "The Lord reigned, nations tremble" (Psalms 99:1); "Remember the day of Jerusalem to the Children of Edom" (Psalms 137:7); [and] "the Lord, God, will blow with the shofar, and go in the storms of the south" (Zechariah 9:14). All of these verses: "Hear Israel, the Lord, our God, the Lord is one" (Deuteronomy 6:4); "You have been shown to know" (Deuteronomy 4:35); "And you shall know today and place upon your hearts, etc." (Deuteronomy 4:39) — their content is kingship. Even though there is no mention of kingship [in them], it is surely like, "The Lord will reign forever and ever" (Exodus 15:18); [and] "And then He became King in Jeshurun, etc." (Deuteronomy 33:5).