The walls of Jericho were closed to God's people. No one could get in or get out.
The walls were very tall so no one could climb them either!
God told Joshua that there was no need to worry. He would give the city to Joshua and the Israelites if they trusted Him and did what He said.
God told Joshua and his army to walk around the walls once a day for six days.
(Form the walls and then flatten them out 6 times)
On the seventh day, God told Joshua to march his army seven times round the walls,..
...to tell the priests to blow their trumpets and to get the people to shout as loud as they could.
So Joshua and his army did all of these things. On the seventh day, after marching seven times around the walls the people shouted loudly and the trumpets blew.
The walls of Jericho tumbled down!
And Joshua's army knew that God was with them.
Try using the cards to tell other stories and let me know how you get on!