Bible Verses About Trumpet: Blowing over the sacrifices on the feast day

“Also in the day of your gladness, and in your set feasts, and in the beginnings of your months, you shall blow the shofars 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 the LORD your God.”

Blow the shofar at the New Moon, at the full moon, on our feast day.