Joshua 3.16 the flow of water stopped. It piled up in a heap - a long way off - at Adam, which is near Zarethan. The river went dry all the way down to the Arabah Sea (the Salt Sea). And the people crossed, facing Jericho.
Deuteronomy 29.2-3 You've seen with your own eyes everything that God did in Egypt to Pharaoh and his servants, and to the land itself - the massive trials to which you were eyewitnesses, the great signs and miracle-wonders.
Deuteronomy 8.3 He fed you with manna, something neither you nor your parents knew anything about, so you would learn that men and women don't live by bread only; we live by every word that comes from GOD's mouth