'Solemnities' in the Bible

Look upon Zion, the city of our solemnities: thine eyes shall see Jerusalem a quiet habitation, a tabernacle that shall not be taken down; not one of the stakes thereof shall ever be removed, neither shall any of the cords thereof be broken.

And in controversy they shall stand to judge: they shall judge it according to my judgments; and they shall keep my laws and my statutes in all my solemnities; and they shall hallow my sabbaths.

And it shall be the prince's part to give burnt offerings, and meat offerings, and drink offerings, in the feasts, and in the new moons, and in the sabbaths, in all solemnities of the house of Israel: he shall prepare the sin offering, and the meat offering, and the burnt offering, and the peace offerings, to make reconciliation for the house of Israel.

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

And I will cause all her mirth to cease: her feasts, her new moons, and her sabbaths! and all her solemnities.