Should We Keep The Sabbath?

Christians have long observed the first day of the week as the day to gather for communion, worship, and exhortation. Why not observe the seventh day of the week as the Sabbath as the Jews were commanded to do? In this broadcast of Let the Bible Speak, we learn about the day God rested from creation, and the day which was institutionalized by Moses among the people of God. What did it mean and are we still expected to cease from labor and gather for worship on Saturday?