If the Lord’s Day is Sunday, then why will not be the Lord’s Day the Sabbath? “I was in the Spirit on the Lord’s Day, and heard behind me a terrific voice, as of a trumpet.” (Revelation 1:10) John here simply states that he “was within the Spirit on the Lord’s day.” Although it is true that finally the time period “Lord’s day” came for use for Sunday, no evidence indicates this was the case till about a century after the Book of Revelation was written! Actually, there may be likelihood that the term was utilized to “Easter” Sunday before it was applied to a weekly Sunday.
But the Roman province of Asia, to which the Revelation applies, had no Sunday-Easter tradition, either at the time the Revelation was written or perhaps a century later. Thus “Lord’s day” in Revelation 1:10 couldn’t refer to an Easter Sunday.
Most pointedly of all, there is neither prior nor contemporary proof that Sunday had achieved in New Testament instances a status which would have caused it to be called “Lord’s day.” One other day – the seventh-day Sabbath – had been the Lord’s holy day from antiquity (see Isaiah fifty eight:13) and was the day on which Christ Himself and His followers, together with the Apostle Paul had attended religious services.
The Book of Acts reveals that the only day on which the Apostles repeatedly have been engaged in worship services on a weekly foundation was Saturday, the seventh day of the week. The Apostle Paul and his firm, when visiting Antioch in Pisidia, “went into the synagogue on the Sabbath day, and sat down.” (Acts thirteen:14) After the Scripture reading, they had been called upon to speak. They stayed in Antioch an extra week, and that “next Sabbath day got here almost the entire city collectively to listen to the word of God.” (Acts thirteen:forty four)
In Philippi, Paul and his firm went out of the city by a riverside on the Sabbath day, to the place where prayer was customarily made (Acts 16:thirteen). In Thessalonica, “as his manner was,” Paul went to the synagogue and “three Sabbath days reasoned with them out of the scriptures.” (Acts 17:2) And zaniolo01 in Corinth, where Paul resided for a yr and a half, “he reasoned in the synagogue every Sabbath and persuaded the Jews and the Greeks” (Acts 18:four)
Thus the evidence in the Book of Acts multiplied concerning apostolic attendance at worship companies on Saturday.
In sum total, there’s not one piece of concrete proof anywhere in the New Testament that Sunday was considered as a weekly day of worship for Christians. Fairly, Christ Himself, His followers on the time of His loss of life, and apostles after His resurrection frequently attended companies on Saturday the seventh day of the week.