[supercat]

If there wasn't a God, why would they worry about excluding the sabbath?

Sunday commemorates the day of Christ's resurection, which is the day AFTER the sabbath (which is Saturday).

[B.R. Burton]

Very true, Supercat, but remember Sunday became thought of as the Sabbath in mainstream Christianity, even though the Bible recognizes it as Friday sundown to Saturday Sundown. That doesn't mean the Sabbath is Sunday, but it does indicate that the Framers viewed it as such.