Genesis 29:5 (KJV)

Then Jacob went on his journey, and came into the land of the people of the east.

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 Jacob said unto them, My brethren, whence be ye? And they said, Of Haran are we.

And he said unto them, Is he well? And they said, He is well: and, behold, Rachel his daughter cometh with the sheep.

And he said, Lo, it is yet high day, neither is it time that the cattle should be gathered together: water ye the sheep, and go and feed them.

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 while he yet spake with them, Rachel came with her father's sheep; for she kept them.

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.