I.e., “the well of him that liveth and seeth me,” or, as some render it, “the well of the vision of life”, the well where the Lord met with Hagar (Gen. 16:7-14). Isaac dwelt beside this well (24:62; 25:11). It has been identified with ‘Ain Muweileh, or Moilahhi, south-west of Beersheba, and about 12 miles W. from Kadesh-barnea.
Beer-Lahai-Roi
The name of a well can carry a whole story. Hagar, driven out into the wilderness, is met there, and afterward it is called Beerlahairoi, “between Kadesh and Bered” (Genesis 16:14). The scene is one of the Bible’s tender ones: a runaway is found and spoken to. Years afterward Isaac comes “from the way of the well Lahairoi” to meet Rebekah (Genesis 24:62), and settles by it after Abraham dies (Genesis 25:11). Read Genesis 16 for the first meeting.
3 verses
Genesis
Wherefore the well was called Beerlahairoi; behold, it is between Kadesh and Bered.
And Isaac came from the way of the well Lahairoi; for he dwelt in the south country.
And it came to pass after the death of Abraham, that God blessed his son Isaac; and Isaac dwelt by the well Lahairoi.
From Easton's Bible Dictionary
Matthew George Easton, 1897