What and Why

If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the Lord, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words: (Isaiah 58:13)

In those days saw I in Judah some treading wine presses on the sabbath, and bringing in sheaves, and lading asses; as also wine, grapes, and figs, and all manner of burdens, which they brought into Jerusalem on the sabbath day: and I testified against them in the day wherein they sold victuals. 16 There dwelt men of Tyre also therein, which brought fish, and all manner of ware, and sold on the sabbath unto the children of Judah, and in Jerusalem. 17 Then I contended with the nobles of Judah, and said unto them, What evil thing is this that ye do, and profane the sabbath day? 18 Did not your fathers thus, and did not our God bring all this evil upon us, and upon this city? yet ye bring more wrath upon Israel by profaning the sabbath. 19 And it came to pass, that when the gates of Jerusalem began to be dark before the sabbath, I commanded that the gates should be shut, and charged that they should not be opened till after the sabbath: and some of my servants set I at the gates, that there should no burden be brought in on the sabbath day. 20 So the merchants and sellers of all kind of ware lodged without Jerusalem once or twice. 21 Then I testified against them, and said unto them, Why lodge ye about the wall? if ye do so again, I will lay hands on you. From that time forth came they no more on the sabbath. 22 And I commanded the Levites that they should cleanse themselves, and that they should come and keep the gates, to sanctify the sabbath day. Remember me, O my God, concerning this also, and spare me according to the greatness of thy mercy. (Nehemiah 13:15-22)

Thus saith the Lord; Take heed to yourselves, and bear no burden on the sabbath day, nor bring it in by the gates of Jerusalem; 22 Neither carry forth a burden out of your houses on the sabbath day, neither do ye any work, but hallow ye the sabbath day, as I commanded your fathers. 23 But they obeyed not, neither inclined their ear, but made their neck stiff, that they might not hear, nor receive instruction. 24 And it shall come to pass, if ye diligently hearken unto me, saith the Lord, to bring in no burden through the gates of this city on the sabbath day, but hallow the sabbath day, to do no work therein; 25 Then shall there enter into the gates of this city kings and princes sitting upon 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 for ever. 26 And they shall come from the cities of Judah, and from the places about Jerusalem, and from the land of Benjamin, and from the plain, and from the mountains, and from the south, bringing burnt offerings, and sacrifices, and meat offerings, and incense, and bringing sacrifices of praise, unto the house of the Lord. 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. (Jeremiah 17:21-27)

There are some businesses that are especially profitable on Saturday, or alternatively that are benefitted greatly by running any or every day of the week. Nehemiah did not believe this was a good enough reason to break the Sabbath. According to Jeremiah, God agrees with Nehemiah, he doesn't think it is a good reason either.

Today the orthodox Jews are very careful about the Sabbath, already by Jesus' time they were a bit too careful about it, at least when they applied it to Jesus and his followers rather than themselves. But neither in Nehemiah or Jeremiah does God reinforce his early command that Sabbath-breakers be stoned. Instead he emphasises the benefits of Sabbath-keeping.

I want to note that desire for gain is a much bigger motivator over the long-term than fear of loss, although fear of loss is a bigger motivator for short-term decisions. So to motivate people to make lasting decisions we should appeal to their desire for gain. Keep the Sabbath and you can have peace and rest, a time for joy and family free from guilt like you should be working, you can have joy when your family and friends see your stand and are also inspired to join with Jesus on his side of this conflict against the dark forces of spiritual realms.