'Festivals' in the Bible

and to offer all burnt sacrifices to the Lord on the Sabbaths, the new moons, and the festivals by number according to the ordinance concerning them, continually before the Lord.

“I hate [the hypocrisy of] your New Moon festivals and your appointed feasts.They have become a burden to Me;I am weary of bearing them.

“I will gather those [Israelites in captivity] who grieve about the appointed feasts—They came from you, [O Zion];On whom the reproach [of exile] is a burden.