(Read But when they departed from Perga, they came to Antioch in Pisidia, and went into the synagogue on the sabbath day, and sat down. And after the reading of the law and the prophets the rulers of the synagogue sent unto them, saying, Ye men and brethren, if ye have any word of exhortation for the people, say on. Then Paul stood up, and beckoning with his hand said, Men of Israel, and ye that fear God, give audience. Acts 13:14-16, And when the Jews were gone out of the synagogue, the Gentiles besought that these words might be preached to them the next sabbath. Now when the congregation was broken up, many of the Jews and religious proselytes followed Paul and Barnabas: who, speaking to them, persuaded them to continue in the grace of God. Acts 13:42-43 and And he reasoned in the synagogue every sabbath, and persuaded the Jews and the Greeks. Acts 18:4).
The Gentiles were not observers of the seventh day until after they
became Christians.
There is also scriptural evidence that the Apostles
convened on the seventh day Sabbath for fellowship and prayer. (Read And on the sabbath we went out of the city by a river side, where
prayer was wont to be made; and we sat down, and spake unto the women
which resorted thither.And a certain woman named Lydia, a seller of purple, of the city of Thyatira, which worshipped God, heard us: whose heart the Lord opened, that she attended unto the things which were spoken of Paul. Acts 16:13-14)."
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