'Sabbath Day' in the Bible

Then they returned to Jerusalem from the mountain called Olivet, which is near Jerusalem having a Sabbath day journey.

And they, having passed through from Perga, arrived at Antioch of Pisidia, and after entering into the synagogue on the Sabbath day, they sat down.

And on the Sabbath day we went outside the city beside a river, where it was customary for prayer to be. And having sat down, we spoke to the women who came together.