Pool: a pond, or reservoir, for holding water (Heb. berekhah; modern
Arabic, birket), an artificial cistern or tank. Mention is made
of the pool of Gibeon (2 Sam. 2:13); the pool of Hebron (4:12);
the upper pool at Jerusalem (2 Kings 18:17; 20:20); the pool of
Samaria (1 Kings 22:38); the king's pool (Neh. 2:14); the pool
of Siloah (Neh. 3:15; Eccles. 2:6); the fishpools of Heshbon
(Cant. 7:4); the "lower pool," and the "old pool" (Isa.
22:9,11).
The "pool of Bethesda" (John 5:2,4, 7) and the "pool of
Siloam" (John 9:7, 11) are also mentioned. Isaiah (35:7) says,
"The parched ground shall become a pool." This is rendered in
the Revised Version "glowing sand," etc. (marg., "the mirage,"
etc.). The Arabs call the mirage "serab," plainly the same as
the Hebrew word "sarab", here rendered "parched ground." "The
mirage shall become a pool", i.e., the mock-lake of the burning
desert shall become a real lake, "the pledge of refreshment and
joy." The "pools" spoken of in Isa. 14:23 are the marshes caused
by the ruin of the canals of the Euphrates in the neighbourhood
of Babylon.
The cisterns or pools of the Holy City are for the most part
excavations beneath the surface. Such are the vast cisterns in
the temple hill that have recently been discovered by the
engineers of the Israel Exploration Fund. These underground
caverns are about thirty-five in number, and are capable of
storing about ten million gallons of water. They are connected
with one another by passages and tunnels.