Leviticus 23:24

then make an offering by fire to Yahweh, a burnt offering or a sacrifice to fulfill a special vow, or as a freewill offering or in your appointed times, to make a soothing aroma to Yahweh, from the herd or from the flock.

‘Now in the seventh month, on the first day of the month, you shall also have a holy convocation; you shall do no laborious work. It will be to you a day for blowing trumpets.

Then Ezra the priest brought the law before the assembly of men, women, and all who could understand when listening, on the first day of the seventh month.

Blow the trumpet at the new moon, At the full moon, on our feast day.

How blessed are the people who know the loud shout of joy! O Yahweh, they walk in the light of Your face.

“And it shall be the prince’s part to provide the burnt offerings, the grain offerings, and the drink offerings, at the feasts, on the new moons, and on the sabbaths, at all the appointed times of the house of Israel; he shall provide the sin offering, the grain offering, the burnt offering, and the peace offerings, to make atonement for the house of Israel.”