“When you see the ark of the covenant of the Lord your God, and the Levitical priests carrying it, you are to move out from your positions and follow it. Then you will know which way to go, since you have never been this way before.” Joshua told the people, “Consecrate yourselves, for tomorrow the Lord will do amazing things among you.” Joshua 3:3-5 –NIV
God used the “captivity” of the people of Israel in Egypt to expand them from a clan to a nation. He used signs and wonders to judge the enemy's demonic forces. The people “experienced” the first Passover deliverance which was a prophetic picture of Christ’s crucifixion and resurrection. The Lord used the journey to the Promised Land to prepare them to take back their inheritance. The first generation failed to enter into the land. Though they had seen all the Lord had done, they didn’t believe the Lord would deliver them from the giants that occupied their land.