Amen! In regard to Acts 13:42-44, Paul's work here was
evangelism. Notice that these were "unbelievers" in Christ before Paul preached to them. Yes they believed in the Jewish system, but the Bible says in Acts 14:1, that they BECAME believers proving
Paul's work there was evangelism and not sabbath worship.
The Greeks were Jewish converts to Judaism known as
proselytes. They practiced the law of Moses and kept the sabbath. The only Greeks that were in the synagogue would be these
proselytes. These Greeks were certainly not Christians. Acts 13:43 "Now when the meeting of the synagogue had broken up,
many of the Jews and of the God-fearing proselytes followed Paul and Barnabas, who, speaking to them, were urging them to continue in the grace of God." 44
On the next sabbath almost the whole city came together to
hear the word of God. 45 But when the
Jews saw the multitudes, they were filled with envy; and contradicting and blaspheming,
they opposed the things spoken by Paul. 46
Then Paul and Barnabas grew bold and said,
"It was necessary that the word of God should be spoken to you first; but since you reject it, and judge yourselves unworthy of everlasting life, behold, we turn to the Gentiles.
Acts 14:1 - "In Iconium they
entered the synagogue of the Jews together and
spoke in such a manner that a large number of people believed, both of Jews and of Greeks."
Acts 17:4 - "And
some of them were persuaded and joined Paul and Silas, along with a large number of the
God-fearing Greeks and a number of the leading women.
Acts 18:4 - "And he was
reasoning in the synagogue every Sabbath and trying to persuade Jews and Greeks."