Psalms 81:3-6

³Blow the trumpet on the day of the new moon, on the day of the full moon, when our feast day begins.

⁴For it is a statute for Israel, a decree given by the God of Jacob.

⁵He issued it as a regulation in Joseph when he went against the land of Egypt, where I heard a voice that I did not recognize:

⁶“I removed the burden from his shoulder; his hands were freed from holding the basket.