|Easton's Bible Dictionary|
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 (Genesis 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.
Int. Standard Bible Encyclopedia
be-er-la-hi'-roi, be-er-la-hi-ro'-i (be'er lachai ro'i, "well of the Living One that seeth me"): "A fountain of water in the wilderness," "the fountain in the way to Shur" (Genesis 16:7-14). It was the scene of Hagar's theophany, and here Isaac dwelt for some time (Genesis 16:7; Genesis 24:62; Genesis 25:11). The site is in The Negeb between Kadesh and Bered (Genesis 16:14). Rowland identifies the well with the modern `Ain Moilaihhi, circa 50 miles South of Beersheba and 12 miles West of `Ain Kadis. Cheyne thinks that Hagar's native country, to which she was fleeing and from which she took a wife for Ishmael, was not Egypt (mitsrayim), but a north Arabian district called by the Assyrians Mucri (Encyclopedia Biblica).
S. F. Hunter
Beer-lahai-roi (3 Occurrences)
Genesis 16:14 Wherefore the well was called Beer-lahai-roi; behold, it is between Kadesh and Bered. (ASV DBY JPS NAS)
Genesis 24:62 And Isaac came from the way of Beer-lahai-roi. For he dwelt in the land of the South. (ASV BBE DBY JPS NAS)
Genesis 25:11 And it came to pass after the death of Abraham, that God blessed Isaac his son. And Isaac dwelt by Beer-lahai-roi. (ASV DBY JPS NAS)