Gen. 14:1-7 The campaign of the four great kings
In the days of King Amraphel of Shinar, King Arioch of Ellasar, King Chedorlaomer of Elam, and King Tidal of Goiim, these kings made war with King Bera of Sodom, King Birsha of Gomorrah, King Shinab of Admah, King Shemeber of Zeboiim, and the king of Bela (that is, Zoar). All these joined forces in the Valley of Siddim (that is, the Dead Sea). Twelve years they had served Chedorlaomer, but in the thirteenth year they rebelled. In the fourteenth year Chedorlaomer and the kings who were with him came and subdued the Rephaim in Ashteroth-karnaim, the Zuzim in Ham, the Emim in Shaveh-kiriathaim, and the Horites in the hill country of Seir as far as El-paran on the edge of the wilderness; then they turned back and came to En-mishpat (that is, Kadesh), and subdued all the country of the Amalekites, and also the Amorites who lived in Hazazon-tamar.
Ezek. 47:18-19 The eastern and southern frontiers of the land
On the east side, between Hauran and Damascus; along the Jordan between Gilead and the land of Israel; to the eastern sea and as far as Tamar. This shall be the east side. On the south side, it shall run from Tamar as far as the waters of Meribath-kadesh, from there along the Wadi of Egypt to the Great Sea. This shall be the south side.
1Kings 9:17-18 Solomon's building program
So Solomon rebuilt Gezer, Lower Beth-horon, Baalath, Tamar in the wilderness, within the land.