Joshua 4:15 - Albert Barnes' Notes on the Bible

The passage of the priests to the further bank had been already referred to, Joshua 4:11; but the writer, in observance of his general plan (compare introductory remarks to Joshua 3), re-introduces it here as the leading feature in the concluding section of his account, and (as before) with mention of God’s special direction about it. The statement that on the removal of the ark the waters of Jordan at once returned to their former level Joshua 4:18, heightens the impression which is especially inculcated throughout - that the whole transaction was extraordinary and miraculous. The details and incidents of the passage are no doubt open to manifold discussion: but all such discussion will be futile unless it proceed throughout on the admission that we have here before us the record of a distinctly supernatural interposition: compare the introduction to the Book of Joshua.