The Apostle Paul
1 Thessalonians 4:11BSB·traditional attribution

and to aspire to live quietly, to attend to your own matters, and to work with your own hands, as we instructed you.

Geneva Bible Notes Reformed

And that ye study to be quiet, and to do your own business, and to work with your own hands, as we commanded you; (7) He condemns unsettled minds, and such as are curious in matters which do not concern them. (8) He rebukes idleness and slothfulness: and whoever is given to these vices, fall into other wickedness, to the great offence of the Church.

John Calvin Reformed

11 Maintain Peace. I have already stated that this clause must be separated from what goes before, for this is a new sentence. Now, to be at peace, means in this passage — to act peacefully and without disturbance, as we also say in French — sans bruit, (without noise.) In short, he exhorts them to be peaceable and tranquil.

Jamieson-Fausset-Brown Reformed

study to be quiet--Greek, "make it your ambition to be quiet, and to do your own business." In direct contrast to the world's ambition, which is, "to make a great stir," and "to be busybodies" (Th2 3:11-12). work with your own hands--The Thessalonian converts were, it thus seems, chiefly of the working classes.