A threatening quite contrary to the former promise, upon their acting contrary to the duty to which that promise was annexed. God would destroy their city; it should be burned with fire, and the highest and noblest structures should be burned; and though the hand of the enemy should do this, yet God should order them to do it, so as it should be a fire of his kindling, and therefore not like to be quenched, till it had effected that thing for which God so kindled it.
Related Commentaries of Jeremiah 17:27
Jeremiah 17:27
27 But if ye will not hearken unto me to hallow the sabbath day, and not to bear a burden, even entering in at the gates of Jerusalem on the sabbath day; then will I kindle a fire in the gates thereof, and it shall devour the palaces of Jerusalem, and it shall not be quenched.