Commentaries:
Jamieson, Fausset, and Brown
Go forth—out of the city, to the place where Ahaz was superintending the works for defense and the cutting off of the water supply from the enemy, and securing it to the city. So Isaiah 22:9; II Chronicles 32:4.
Shearjashub—that is, A remnant shall return (Isaiah 6:13). His very name Isaiah 7:14; Isaiah 8:3 was a standing memorial to Ahaz and the Jews that the nation should not, notwithstanding the general calamity (Isaiah 7:17-25; Isaiah 8:6-8), be utterly destroyed (Isaiah 10:21-22).
conduit—an aqueduct from the pool or reservoir for the supply of the city. At the foot of Zion was Fount Siloah (Isaiah 8:6; Nehemiah 3:15; John 9:7), called also Gihon, on the west of Jerusalem (II Chronicles 32:30). Two pools were supplied from it, the Upper, or Old (Isaiah 22:11), or King's (Nehemiah 2:14), and the Lower (Isaiah 22:9), which received the superfluous waters of the upper. The upper pool is still to be seen, about seven hundred yards from the Jaffa gate. The highway leading to the fullers' field, which was in a position near water for the purposes of washing, previous to drying and bleaching, the cloth, was probably alongside the aqueduct.
Other Jamieson, Fausset, and Brown entries containing Isaiah 7:3:
Isaiah 8:18
Isaiah 10:20-22
Isaiah 22:9
Isaiah 22:11
Isaiah 36:2
Amos 3:12
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