“His concubine who was in Shechem also bore him a son, and he named him Abimelech.”
Judges 8:31 (WEB)
Context Reading
29Jerubbaal the son of Joash went and lived in his own house. 30Gideon had seventy sons conceived from his body, for he had many wives. 31His concubine who was in Shechem also bore him a son, and he named him Abimelech. 32Gideon the son of Joash died in a good old age, and was buried in the tomb of Joash his father, in Ophrah of the Abiezrites. 33As soon as Gideon was dead, the children of Israel turned again and played the prostitute following the Baals, and made Baal Berith their god.