Summary of Joshua 7. Joshua 7 tells us the story of Achan's sin and judgment. Secretly Achan had taken the accursed thing in Jericho in disobedience to God. God was angry with the children of Israel for Achan's sin. Joshua continued with the conquest of the Promise Land and sent men from Jericho to conquerer the country of Ai. Joshua's army soon fled from the men of Ali in defeat.