Book of Acts - Chapter 1 - Verse 12

After witnessing Jesus' ascension into heaven from the Mount of Olives, the disciples returned to Jerusalem, following the customs of the Sabbath. A "Sabbath day's journey" was the distance that the Jewish law permitted one to travel on a Sabbath day, which was approximately 2,000 cubits (about 3,280 feet). This restriction was put in place to ensure that people did not engage in unnecessary work on the day of rest. By adhering to this rule, the disciples demonstrated their commitment to honoring the Sabbath and their faithfulness to their religious practices. The mention of this detail in the verse highlights the disciples' obedience to Jewish traditions even as they embarked on the monumental task of spreading the teachings of Jesus to the world. It serves as a reminder of the importance of observing religious rituals while carrying out a divine mission.