TSK
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"Also in the day of your gladness, and in your set feasts, and in the beginnings of your months, you shall blow the trumpets over your burnt offerings, and over the sacrifices of your peace offerings; and they shall be to you for a memorial before your God. I am Yahweh your God."
Shebaniah, and Joshaphat, and Nethanel, and Amasai, and Zechariah, and Benaiah, and Eliezer, the priests, did blow the trumpets before the ark of God: and Obed-Edom and Jehiah were doorkeepers for the ark.
four thousand were doorkeepers; and four thousand praised Yahweh with the instruments which I made, for giving praise."
Blow the trumpet at the New Moon, at the full moon, on our feast day.
Sing praises to Yahweh with the harp, with the harp and the voice of melody.
Yahweh will save me. Therefore we will sing my songs with stringed instruments all the days of our life in the house of Yahweh.