When all the Amorite kings west of the Jordan and all the Canaanite kings who lived along the Mediterranean coast heard how the LORD had dried up the Jordan River so the people of Israel could cross, they lost heart and were paralyzed with fear.
References for Joshua 5:1
At that time the LORD told Joshua, "Use knives of flint to make the Israelites a circumcised people again."
So Joshua made flint knives and circumcised the entire male population of Israel at Gibeath-haaraloth.
References for Joshua 5:3
Joshua had to circumcise them because all the men who were old enough to bear arms when they left Egypt had died in the wilderness.
Those who left Egypt had all been circumcised, but none of those born after the Exodus, during the years in the wilderness, had been circumcised.
The Israelites wandered in the wilderness for forty years until all the men who were old enough to bear arms when they left Egypt had died. For they had disobeyed the LORD, and the LORD vowed he would not let them enter the land he had sworn to give us -- a land flowing with milk and honey.
So Joshua circumcised their sons who had not been circumcised on the way to the Promised Land -- those who had grown up to take their fathers' places.
After all the males had been circumcised, they rested in the camp until they were healed.
Then the LORD said to Joshua, "Today I have rolled away the shame of your slavery in Egypt." So that place has been called Gilgal to this day.
References for Joshua 5:9
While the Israelites were camped at Gilgal on the plains of Jericho, they celebrated Passover on the evening of the fourteenth day of the first month -- the month that marked their exodus from Egypt.
References for Joshua 5:10
The very next day they began to eat unleavened bread and roasted grain harvested from the land.
No manna appeared that day, and it was never seen again. So from that time on the Israelites ate from the crops of Canaan.