'Well's' in the Bible

And he looked, and behold a well in the field, and, lo, there were three flocks of sheep lying by it; for out of that well they watered the flocks: and a great stone was upon the well's mouth.

And thither were all the flocks gathered: and they rolled the stone from the well's mouth, and watered the sheep, and put the stone again upon the well's mouth in his place.

And they said, We cannot, until all the flocks be gathered together, and till they roll the stone from the well's mouth; then we water the sheep.

And it came to pass, when Jacob saw Rachel the daughter of Laban his mother's brother, and the sheep of Laban his mother's brother, that Jacob went near, and rolled the stone from the well's mouth, and watered the flock of Laban his mother's brother.

And the woman took and spread a covering over the well's mouth, and spread ground corn thereon; and the thing was not known.