And Joshua said unto the children of Israel, Come hither, and hear the words of the LORD your God.

Wesley's Notes

3:9 Come hither - To the ark or tabernacle, the place of public assemblies. The Lord your God - Who is now about to give a proof that he is both the Lord, the omnipotent governor of heaven and earth, and all creatures; and your God, in covenant with you, having a tender care and affection for you.

Jamieson-Fausset-Brown Bible Commentary

Jos 3:9-13. Joshua Encourages the People.

9-13. Come hither, and hear the words of the Lord-It seems that the Israelites had no intimation how they were to cross the river till shortly before the event. The premonitory address of Joshua, taken in connection with the miraculous result exactly as he had described it, would tend to increase and confirm their faith in the God of their fathers as not a dull, senseless, inanimate thing like the idols of the nations, but a Being of life, power, and activity to defend them and work for them.

Matthew Henry's Concise Commentary

3:7-13 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.