The sermon opens with a sobering observation about congregational readiness. God provides godly leadership when His people genuinely desire to follow His Word. Joshua's example is compelling — he rose early, consecrated the people, and delegated wisely. The call to consecration is pressed home as more than ritual: it is a heart-preparation for worship, an intentional posture of readiness before the God who is about to act. God's theological preparation of Israel centers on the reassurance of His presence. The statement, "Just as I have been with Moses, I will be with you" (v. 5), carries enormous weight for a people still grieving their great leader. Joshua steps into a mediatorial role that ultimately foreshadows the Lord Jesus Christ, the one perfect Mediator between God and man. The miracle itself — the waters of the Jordan standing in a heap as the priests' feet touched the flood-stage river — is treated not as a curiosity but as a covenant declaration. God is the Lord of all the earth, and creation obeys Him. The naturalistic explanations are set aside: this was an instantaneous, unmistakable act of divine power, analogous to the parting of the Red Sea, intended to prepare the minds of God's people for every battle ahead. The sermon closes with three durable truths: God is omnipresent and sovereign over every trial; He never leaves His people without His Word; and true assurance is found not in our own ability but in obeying who God is. As the sermon memorably states, "Yahweh delights to show His might when we are helpless."