Psalm 81:5

“Also in the day of your gladness and in your appointed feasts, and on the first days of your months, you shall blow the trumpets over your burnt offerings and over the sacrifices of your peace offerings; and they shall be as a remembrance of you before your God. I am Yahweh your God.”

For He established a testimony in Jacob And set a law in Israel, Which He commanded our fathers That they should teach them to their children,

When Israel went out from Egypt, The house of Jacob from a people of strange language,