Judges 15:20 in the World English Bible
He judged Israel twenty years in the days of the Philistines.
Context
19 But God clave an hollow place that was in the jaw, and there came water thereout; and when he had drunk, his spirit came again, and he revived: wherefore he called the name thereof En-hakkore, which is in Lehi unto this day.
20 And he judged Israel in the days of the Philistines twenty years.