Joshua 6:3

Go round about the city once, at convenient distance, out of the reach of their arrows; thus shalt thou do six days, every day once. This and the following course might seem ridiculous and absurd, and is therefore prescribed and used by God, that they might learn to take new measures of things, and to expect success not from their own valour or skill, or probable means, but merely from God's appointment and blessing; and in general, not to judge of any of God's institutions by mere carnal reason, to which divers of their ceremonies would seem no less foolish than this action; and that they might have a full demonstration of the all-sufficiency of that God who can do what he pleaseth, even by the most contemptible means.