The biblical account of Gideon begins in a similar way to the other cycles in judges. A vast hoard of Midianite enemies, along with some allies, would appear regularly just at the time of harvest to plunder and destroy the crops (Judges 6: 3- 2). Israel was repeatedly left in an impoverished condition as a result. In time the Israelites cried out to God for deliverance, and God responded by calling Gideon to deliver them.
What we remember most about Gideon's call is that his reluctancy to accept what God was telling him. After all, he was an unknown from an insignificant clan within the tribe of Manassa and had apparently never been in a leadership position. However, God often chooses unexpected people for important leadership roles and then He equips them to accomplish His work. That was His plan for Gideon.