'Sabbath day' in the Bible

Then they returned to Jerusalem from the mountain called the Mount of Olives (which is near Jerusalem, a Sabbath day's journey away).

Moving on from Perga, they arrived at Pisidian Antioch, and on the Sabbath day they went into the synagogue and sat down.

On the Sabbath day we went outside the city gate to the side of the river, where we thought there would be a place of prayer, and we sat down and began to speak to the women who had assembled there.