One of Gideon‘s sons was Abimelech. It is arguable if Abimelech should be counted as a judge.
If so, he would be classified as a failure, for he violently seized power, did not fight for or liberate his people from foreign powers, but instead fought internally, with much loss of life as a result — including his own.
Abimelech was the son of a concubine (or slave). Interestingly, another judge, Jephthah, was a son of the prostitute. Jephthah, however, unlike Abimelech, was a successful judge, who liberated his people, whereas Abimelech killed — or caused the death — of his people.
Both Abimelech and Jephthah had a less than ideal start in life, but what they did with it was opposite from each other. Jephthah became a hero; Abimelech, a tyrant.
A lifelong student of the Bible, Peter DeHaan, PhD, wrote the 1,000-page website ABibleADay.com to encourage people to explore the Bible. His main blog and many books urge Christians to push past the status quo and reconsider how they practice their faith in every area of their lives.