'Appointed Feasts' in the Bible

As a holy flock, as the flock of Jerusalem in her appointed feasts, so shall the waste cities be filled with flocks of men. And they shall know that I am Jehovah.

And it shall be the ruler's part to give burnt offerings and food offerings and drink offerings, in the feasts, and in the new moons, and in the sabbaths, in all appointed feasts of the house of Israel. He shall prepare the sin offering and the food offering and the burnt offering and the peace offerings, to make atonement for the house of Israel.

But when the people of the land come before Jehovah in the appointed feasts, he who enters by the way of the north gate to worship shall go out by the way of the south gate. And he who enters by the way of the south gate shall go out by the way of the north gate. He shall not return by the way of the gate by which he came in, but shall leave opposite it.

And in the feasts and in the appointed feasts the food offering shall be an ephah to a bull, and an ephah to a ram, and to the lambs as he is able to give, and a hin of oil to an ephah.