The joy of YeHoVaH is your strength - The Feast of Trumpets - House of Israel UK
The purpose of the psalmists admonition to sing aloud, to make a joyful noise, to take psalms, play instruments and to blow up the trumpet at the New Moon, the time appointed and solemn feast day, is to bring into remembrance the reader to the goodness of YeHoVaH, when his status are kept and the repercussions of not doing so. Asaph the seer (2Ch 29:30), is prophetically illustrating to the reader that in times past because Israel would not hearken to the voice of YeHoVaH; and Israel would none of him, they were subdued instead of their enemies, the haters of YeHoVaH ultimately ruled over them, and they paid tribute instead tribute being paid unto them. The Psalmist therefore is prophetically sounding the alarm, being a watchman unto that which is coming, if those who read the psalm presently don’t learn from the mistakes of the past.