Charles Ellicott Commentary Judges 11:2

"And Gilead`s wife bare him sons; and when his wife`s sons grew up, they drove out Jephthah, and said unto him, Thou shalt not inherit in our father`s house; for thou art the son of another woman." — Judges 11:2 (ASV)

They thrust out Jephthah. —This was in perfect accordance with the law (Deuteronomy 23:2–3), and with family rules and traditions. Abraham had sent the son of Hagar and the sons of Keturah to found other settlements (Genesis 21:10; Genesis 25:6).