Seventh-Day Adventists/no buy no sell
people try to thwart my message all the time saying that the sabbath has nothing to do with buying and selling.
any sound arguments to help me deliver a more convincing explanation?
Thank you for your question.
Nehemiah 13 is the best I could see that makes it clear...
Nehe 13:15 In those days I saw people in Judah treading wine presses on the Sabbath, and bringing in sheaves, and loading donkeys with wine, grapes, figs, and all kinds of burdens, which they brought into Jerusalem on the Sabbath day. And I warned them about the day on which they were selling provisions. 16 Men of Tyre dwelt there also, who brought in fish and all kinds of goods, and sold them on the Sabbath to the children of Judah, and in Jerusalem.17 Then I contended with the nobles of Judah, and said to them, “What evil thing is this that you do, by which you profane the Sabbath day? 18 Did not your fathers do thus, and did not our God bring all this disaster on us and on this city? Yet you bring added wrath on Israel by profaning the Sabbath.” 19 So it was, at the gates of Jerusalem, as it began to be dark before the Sabbath, that I commanded the gates to be shut, and charged that they must not be opened till after the Sabbath. Then I posted some of my servants at the gates, so that no burdens would be brought in on the Sabbath day. 20 Now the merchants and sellers of all kinds of wares lodged outside Jerusalem once or twice. 21 Then I warned them, and said to them, “Why do you spend the night around the wall? If you do so again, I will lay hands on you!” From that time on they came no more on the Sabbath. 22 And I commanded the Levites that they should cleanse themselves, and that they should go and guard the gates, to sanctify the Sabbath day.
So buying and selling is clearly forbidden on the Sabbath.