Judges 15:19

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 Enhakkore, which is in Lehi unto this day.

But God split the hollow place that is in Lehi, and water came out of it. When he had drunk, his spirit came again, and he revived: therefore the name of it was called En Hakkore, which is in Lehi, to this day.

But God clave the hollow place that is in Lehi, and there came water thereout; and when he had drunk, his spirit came again, and he revived: wherefore the name thereof was called En-hakkore, which is in Lehi, unto this day.

And God cleaveth the hollow place which `is' in Lehi, and waters come out of it, and he drinketh, and his spirit cometh back, and he reviveth; therefore hath `one' called its name `The fountain of him who is calling,' which `is' in Lehi unto this day.

So God opened up the hollow place in Lehi, and water came out of it. When Samson drank, his strength returned, and he was revived. That is why he named it En-hakkore, and it remains in Lehi to this day.