'Sabbath Day' in the Bible

Thus says Yahweh, Take heed to yourselves, and bear no burden on the Sabbath day, nor bring it in by the gates of Jerusalem;

neither carry forth a burden out of your houses on the Sabbath day holy, neither do any work: but make the Sabbath day, as I commanded your fathers.

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;

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.