Does it matter which days we observe? And does God care when we worship Him, as long as we do worship Him? Most professing Christians just accept whatever their parents or church taught them as tradition. Until I was a young adult, that is what I did, too. When I was a boy, I asked my mother, “Why do we keep Sunday, when the fourth commandment in the Bible teaches us to keep the Sabbath, the seventh day?” She gave me some vague answer, which I accepted at the time. But can you answer that question? Which day is the Christian Sabbath?
Where do today’s professing Christians get the idea that Sunday is the Christian day of worship? You may be shocked to learn that some religious sects teach that their church’s tradition carries more authority than the Bible! Notice this statement from Anglican theologian Isaac William: “Where are we told in Scripture that we are to keep the first day at all? We are commanded to keep the seventh; but we are nowhere commanded to keep the first day…. The reason why we keep the first day of the week holy instead of the seventh is for the same reason that we observe many other things, not because the Bible, but because the church, has enjoined it” (Plain Sermons on the Catechism, vol. 1, pp. 334, 336).