The disciples and followers of Christ kept Saturday Sabbath according to the commandment:
And the women also, which came with him from Galilee, followed after, and beheld the sepulchre, and how his body was laid. And they returned, and prepared spices and ointment; and rested the Sabbath day according to the commandment (Luke 23:55-56).
After Jesus ascended back to heaven, the disciples of Christ continued to keep the seventh-day Sabbath for many decades. The Ten Commandments, including the Saturday Sabbath, were not done away with when Christ died. Every single commandment can be found reiterated in the New Testament.
Paul and the Sabbath
The inspired Word of God in the book of Acts, as written by Luke, records the keeping of 84 Sabbaths by Paul and his companions. We note first in Acts 13:14 that “when they departed from Perga, they came to Antioch in Pisidia, and went into the synagogue on the Sabbath day.”
Paul and his associates were still observing the Sabbath in 45 AD, 14 years after the resurrection.
And when the Jews were gone out of the synagogue, the Gentiles besought that these words might be preached to them the next Sabbath: And the next sabbath came almost the whole city together to hear the word of God (Acts 13:42-44).
The Gentiles also observed the Sabbath with Paul, and they heard the “word of God.” No indication of a change is found. Besides worshipping in the synagogues, they also “on the sabbath…went out of the city by a river side” (Acts 16:13). This was 22 years after the resurrection, in AD 53.
And Paul as his manner was, went in unto them, and three Sabbath days reasoned with them out of the Scriptures (Acts 17:2).
Paul departed from Athens, and came to Corinth; and he reasoned in the synagogue every Sabbath, and persuaded the Jews and the Greeks…And he continued there a year and six months teaching the word of God among them (Acts 18:1,4,11).
Christ’s followers in the early Church continued to celebrate the seventh-day Sabbath, just as Jesus did.