The Lord has cast off his altar, he has abhorred his sanctuary; He has given up into the hand of the enemy the walls of her palaces: They have made a noise in the house of Yahweh, as in the day of a solemn assembly.
That is, the enemies were in there cheering and yelling and all as they were destroying it, much as the voices and cheers and all that once went up in the days of their solemn feasts.