It doesn't happen often (although I'm always delighted when it does), but every once in a while, as I attempt to wrestle a sermon from the weekly text, a single phrase will seem almost to leap off the page, claim my attention, and demand to be preached. And so it was with this tiny phrase nestled in verse 15 of the third chapter of Joshua: "... and the feet of the priests bearing the ark were dipped in the edge of the water ..." (Joshua 3:15b). Now, I'll admit, this might initially appear a rather mundane detail -- especially in a story which is otherwise stirring with such passionate drama. In fact, I probably ought to confess that for all the times I've read this passage, I had never actually noticed it before. Nevertheless, I think there's a clue here as to what faith means. And the mor…