Matthew Henry's Concise Commentary on the Bible - Joshua 3:7-13
7-13 The waters of Jordan shall be cut off. This must be done in such a way as never was done, but in the dividing of the Red sea. That miracle is here repeated; God has the same power to finish the salvation of his people, as to begin it; the WORD of the Lord was as truly with Joshua as with Moses. God's appearances for his people ought to encourage faith and hope. God's work is perfect, he will keep his people. Jordan's flood cannot keep out Israel, Canaan's force cannot turn them out again. read more
George Haydock's Catholic Bible Commentary - Joshua 3:10
Living God, in opposition to the idols of the Gentiles, who were dead men, or at least incapable of affording any assistance to their votaries. Josue gives the people two signs of the divine protection, the destruction of the devoted nations, and the miraculous division of the Jordan, or rather the latter prodigy would be an earnest of the former event; and all, both friends and enemies, might be convinced, that the Lord was with his people, and their present leader, as he had been with Moses.... read more