How does the Bible describe the mother of Jephthah the Gileadite?

Answer: As a prostitute

Jephthah was the son of a prostitute, so Gilead's other sons drove him out of the inheritance and he fled to the land of Tob.

“Now Jephthah the Gileadite was a mighty man of valor; he was the son of a prostitute, and Gilead was his father.”— Judges 11:1 (BSB)