'Feasts' in the Bible

Your feasts are disgusting to me, I will have nothing to do with them; I will take no delight in your holy meetings.

Your feasts will be turned into sorrow and all your melody into songs of grief; everyone will be clothed with haircloth, and the hair of every head will be cut; I will make the weeping like that for an only son, and the end of it like a bitter day.