Cross reference
Genesis 26:15
15 For all the wells which his father's servants had digged in the days of Abraham his father, the Philistines had stopped them, and filled them with earth.
Genesis 21:30
30 And he said, For these seven ewe lambs shalt thou take of my hand, that they may be a witness unto me, that I have digged this well.
Genesis 21:25
25 And Abraham reproved Abimelech because of a well of water, which Abimelech's servants had violently taken away.