fountain of the sun a spring which formed one of the landmarks on the boundary between Judah and Benjamin ( Joshua 15:7 ; 18:17 ). It was between the "ascent of Adummim" and the spring of En-rogel, and hence was on the east of Jerusalem and of the Mount of Olives. It is the modern 'Ain-Haud i.e., the "well of the apostles" about a mile east of Bethany, the only spring on the road to Jericho. The sun shines on it the whole day long.

These dictionary topics are from
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.