'Solemnities' in the Bible

Look upon Zion, the city of our solemnities: thine eyes shall see Jerusalem a quiet habitation, a tent that shall not be removed, the stakes whereof shall never be plucked up, neither shall any of the cords thereof be broken.

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