Enter subtitle here
3 And because he was of the same craft, he abode with them, and wrought: for by their occupation they were tentmakers.
They were a company of Christadelphians, Christou adelphoi, or Brethren of Christ, who believed into him through the word of Peter and the Eleven (John 17:20). This was the day of small things, which they did not despise. They had no temple, cathedral, or synagogue in which they could meet on their return, A.D. 33. Even seventeen years after they met in the house of Priscilla and Aquila, two Jews, who made tents for a living, Acts 18:2; Rom. 16:5.
4 And he reasoned in the synagogue every sabbath, and persuaded the Jews and the Greeks.
Power being in the hands of their enemies the Christians of the Hebrew nation still continued to observe the seventh day according to the custom. Hence we find the apostles frequenting the synagogues on the sabbath days and reasoning with the people out of the Scriptures (Acts 27:2, 17; 18:4; 19:8).
To have done otherwise would have been to create an unnecessary prejudice, and to let slip one of the best opportunities of introducing the gospel to the attention of the Jewish public. They did not forsake the synagogues until they were expelled. While they frequented these, however, on the seventh day, they assembled themselves together with the disciples whose assemblies constituted the ecclesias of the saints and of God.
... On what day, then, did the ecclesias of the saints meet to exhort one another so as to provoke to love and to good works? Certainly, not on the seventh day, for then the apostles were in the synagogues. What day then more appropriate than the Lord's day, or first day of the week?
Now it cannot be affirmed that the saints were commanded to meet on this day, because there is no testimony to that effect in the New Testament. But, it is beyond dispute, that they did assemble themselves together on the first day of the week, and the most reasonable inference is that they did so in obedience to the instruction of the apostles from whose teaching they derived all their faith and practice, which constituted them the disciples of Jesus.
Elpis Israel 1.2.