'Feasts' in the Bible

“I hate your new moon festivals and your appointed feasts,They have become a burden to Me;I am weary of bearing them.

Woe, O Ariel, Ariel the city where David once camped!Add year to year, observe your feasts on schedule.

Look upon Zion, the city of our appointed feasts;Your eyes will see Jerusalem, an undisturbed habitation,A tent which will not be folded;Its stakes will never be pulled up,Nor any of its cords be torn apart.