Judges 15:19-20

19Then God opened up the hollow place in Lehi, and water came out of it. When Samson drank, his strength returned and he revived. So the spring was called En Hakkore, En Hakkore means caller’s spring. and it is still there in Lehi. 20Samson led Traditionally judged Israel for twenty years in the days of the Philistines.