In order to stop them from their sinful ways. GOD delivered them into the hands of enemy nations. The Hebrew people repented and cried out to GOD for help, GOD answered their prayer by sending a deliverer. Each time GOD helps the Hebrews in their time of need. Raising up people like Gideon.
Judges is a book of heroes, to keep the people's faith.
Judges deals with the leaders GOD sent forth to the Hebrews about the year 1000 B.C. such as Samson, Gideon and David. The people were losing their faith once more and following Jezebel. And His presence within His Son. 1050 B.C. Gideon led an army of 100 thousand citizens farmers, tent makers, bakers and rabbinical students. They used trumpets and torches, to confuse their enemies, they won their freedom and proved to Israel that GOD still loved and watched over them.