"Speak to the Israelites and say, 'On the first day of the seventh month you are to have a day of rest, a sacred assembly announced by trumpet blasts.

Leviticus 23:23
The LORD also said to Moses,

Numbers 10:9
When you enter into battle in your land against an adversary who attacks you, sound short blasts on the trumpets, and you will be remembered before the LORD your God and saved from your enemies.

Numbers 10:10
And on your joyous occasions, your appointed feasts, and the beginning of each month, you are to blow the trumpets over your burnt offerings and fellowship offerings to serve as a reminder for you before your God. I am the LORD your God."

Numbers 29:1
"On the first day of the seventh month, you are to hold a sacred assembly, and you must not do any regular work. This will be a day for you to sound the trumpets.

Nehemiah 8:2
On the first day of the seventh month, Ezra the priest brought the Law before the assembly of men and women and all who could listen and understand.

Psalm 81:3
Sound the ram's horn at the New Moon, and at the full moon on the day of our Feast.

Psalm 89:15
Blessed are those who know the joyful sound, who walk, O LORD, in the light of Your presence.

Speak to the children of Israel, saying, In the seventh month, in the first day of the month, shall you have a sabbath, a memorial of blowing of trumpets, an holy convocation.