'Upon the first day of the week, WHEN the disciples came together,' supposes a custom when, or as they were wont to come together to perform such service among themselves to God: then Paul preached unto them, &c.
It is a text also that supposes an agreement among themselves as to this thing. They came together then to break bread; they had appointed to do it then, for that then was the day of their Lord's resurrection, and that in which he himself congregated after he revived, with the first gospel church, the church at Jerusalem.
Thus you see, that breaking of bread, was the work, the work that by general consent was agreed to be by the churches of the Gentiles performed upon the first day of the week. I say, by the churches; for I doubt not but that the practice here, was also the practice of the rest of the Gentile churches, even as it had been before the practice of the church at Jerusalem.
For this practice now did become universal, and so this text implies; for he speaks here universally of the practice of all disciples as such, though he limits Paul preaching to that church with whom he at present personally was. Upon the first day of the week, 'when the disciples came together to break bread,' Paul being at that time at Troas preached to them on that day.
Thus then you see how the Gentile churches did use to break bread, not on the old sabbath, but on the first day of the week. And, I say, they had it from the church at Jerusalem; where the apostles were first seated, and beheld the way of their Lord with their eyes.
Now, I say, since we have so ample an example, not only of the church at Jerusalem, but also of the churches of the Gentiles, for the keeping of the first day to the Lord, and that as countenanced by Christ and his apostles, we should not be afraid to tread in their steps, for their practice is the same with law and commandment. But,
Fifth, We will add to this another text. 'Now [saith Paul] concerning the collection for the saints, as I have given order to the churches of Galatia, even so do ye. Upon the first day of the week let every one of you lay by him in store, as God hath prospered him, that there be no gatherings when I come' (1 Cor 16:1,2).
This text some have greatly sought to evade, counting the duty here, on this day to be done, a duty too inferior for the sanction of an old seventh day sabbath; when yet to show mercy to an ass on the old sabbath, was a work which our Lord no ways condemns (Luke 13:15, 14:5).
But to pursue our design, we have a duty enjoined, and that of no inferior sort. If charity be indeed as it is, the very bond of perfectness: and if without it all our doings, yea and sufferings too, are not worthy so much as a rush (1 Cor 13; Col 3:14). we have here a duty, I say, that a seventh day sabbath, when in force, was not too big for it to be performed in.
The work now to be done, was, as you see, to bestow their charity upon the poor; yea, to provide for time to come. And I say, it must be collected upon the first day of the week. Upon THE first day; not A first day, as signifying one or two, but upon THE first day, even every first day; for so your ancient Bibles have it;[20] also our later must be so understood, or else Paul had left them to whom he did write, utterly at a loss. For if he intended not every first day, and yet did not specify a particular one, it could hardly even have been understood which first day he meant. But we need not stand upon this. This work was a work for A first-day, for EVERY first day of the week.