Judges 12:9 in the King James Version
And he had thirty sons, and thirty daughters, whom he sent abroad, and took in thirty daughters from abroad for his sons. And he judged Israel seven years.
Context
8 After him Ibzan of Bethlehem judged Israel.
9 He had thirty sons. He sent his thirty daughters outside his clan, and he brought in thirty daughters from outside his clan for his sons. He judged Israel seven years.
10 Ibzan died, and was buried at Bethlehem.