Before the Israelites head out to battle, God reaffirms his mission, reconfirms Joshua's leadership, and reminds the Israelites of his might and presence through the re-enactment of the Red Sea crossing as well as circumcision and Passover. Constant reaffirmations and remembrance are essential, especially for an upcoming generation with its own mission and purpose. Therefore, we must consistently remember the Mighty God who is with us.