Wherefore he called that place Beersheba. I.e. "the well of the oath," φρέαρ ὁρκισμοῦ (LXX; Gesenius, Furst, Rosenmüller), or the well of the seven (Keil), rather than the seven wells (Lange); discovered by Robinson in Bir-es-seba, in the Wady-es-seba, twelve miles to the south of Hebron, with two deep wells of excellent water.
"The great well has an internal diameter at the mouth of twelve feet six inches, or a circumference of nearly forty feet. The shaft is formed of excellent masonry to a great depth until it reaches the rock, and at this juncture a spring trickles perpetually.
Around the mouth of the well is a circular course of masonry, topped by a circular parapet of about a foot high; and at a distance of ten or twelve feet are stone troughs placed in a concentric circle with the well, the sides of which have deep indentions made by the wear of ropes on the upper edges The second well, about 200 yards farther south, is not more than five feet in diameter, but is formed of equally good masonry, and furnishes equally good water".
Because there they aware both of them.