Bethhoron: Eusebius says that the two Beth-horons were twelve miles from Jerusalem, towards Nicopolis or Emmaus. Of which the one, called upper Beth-horon, from its situation, was built (rebuilt) by Solomon, and the other, called nether Beth-horon, was given to the Levites. Josephus places Beth-oron about 100 furlongs from Jerusalem. Dr. Clarke mentions an Arab village called Bethoor, about twelve miles from Jerusalem, a small distance from Rama, which he supposes, from its situation on a hill, to be Beth-horon the upper. Joshua 18:13; 1 Kings 9:15-17; 1 Chronicles 7:24, 1 Chronicles 7:28; 2 Chronicles 8:5
Gezer: Probably the Γαζαρα: of Eusebius, four miles from Nicopolis.
the sea: Numbers 34:6