Thematic Bible: The reward for not keeping the sabbath

It shall happen, if you diligently listen to me, says Yahweh, to bring in no burden through the gates of this city on the Sabbath day, but to make the Sabbath day holy, to do no work therein; then shall there enter in by the gates of this city kings and princes sitting on the throne of David, riding in chariots and on horses, they, and their princes, the men of Judah, and the inhabitants of Jerusalem; and this city shall remain forever. They shall come from the cities of Judah, and from the places around Jerusalem, and from the land of Benjamin, and from the lowland, and from the hill country, and from the South, bringing burnt offerings, and sacrifices, and meal offerings, and frankincense, and bringing [sacrifices of] thanksgiving, to the house of Yahweh. read more.
But if you will not listen to me to make the Sabbath day holy, and not to bear a burden and enter in at the gates of Jerusalem on the Sabbath day; then will I kindle a fire in its gates, and it shall devour the palaces of Jerusalem, and it shall not be quenched.