Lord’s Day 38, part 1—Question and Answer #103. The first full day of Adam’s and Eve’s life was the Sabbath Day, the first day of rest. They began their life with a day of worship, on the seventh day. When it comes to the life of the church, the functioning of the church, the keeping of the Lord’s Day is at the very center; we’ll see this under three points: 1. Calls Us to Worship God. 2. Calls Us to Live for God. 3. Calls Us to Look for a Future with God.