One Hundred Bible Facts upon The Sabbath Question Tri-fold

Why keep the Sabbath day? What is the object of the Sabbath? Who made it? When was it made, and for whom? Which day is the true Sabbath? Many keep the first day of the week, or Sunday. What Bible authority have they for this? Some keep the seventh day, or Saturday. What Scripture have they for it? Here are the facts about both days, as plainly stated in the word of God.