Jesaja 7:3

In this season of terror Isaiah received the following divine instructions. "Then said Jehovah to Isaiah, Go forth now to meet Ahaz, thou and Shear-jashub thy son, to the end of the aqueduct of the upper pool, to the road of the fuller's field." The fuller's field (sedēh cōbēs) was situated, as we may assume with Robinson, Schultz, and Thenius, against Williams, Krafft, etc., on the western side of the city, where there is still an "upper pool" of great antiquity (Ch2 32:30). Near to this pool the fullers, i.e., the cleaners and thickeners of woollen fabrics, carried on their occupation (Cōbēs, from Câbas, related to Câbash, subigere, which bears the same relation to râchatz as πλύνειν to λούειν). Robinson and his companions saw some people washing clothes at the upper pool when they were there; and, for a considerable distance round, the surface of this favourite washing and bleaching place was covered with things spread out to bleach or dry. The road (mesillâh), which ran past this fuller's field, was the one which leads from the western gate to Joppa. King Ahaz was there, on the west of the city, and outside the fortifications - engaged, no doubt, in making provision for the probable event of Jerusalem being again besieged in a still more threatening manner. Jerusalem received its water supply from the upper Gihon pool, and there, according to Jehovah's directions, Isaiah was to go with his son and meet him. The two together were, as it were, a personified blessing and curse, presenting themselves to the king for him to make his own selection. For the name Sheâr-yâshub (which is erroneously accentuated with tiphchah munach instead of merchah tiphchah, as in Isa 10:22), i.e., the remnant is converted (Isa 10:21-22), was a kind of abbreviation of the divin…

This chapter is an occasional sermon, in which the prophet sings both of mercy and judgment to those that did not perceive or understand either; he piped unto them, but they danced not, mourned unto them, but they wept not. Here is, I. The consternation that Ahaz was in upon an attempt of the confederate forces of Syria and Israel against Jerusalem (Isa 7:1, Isa 7:2). II. The assurance which God, by the prophet, sent him for his encouragement, that the attempt should be defeated and Jerusalem should be preserved (Isa 7:3-9). III. The confirmation of this by a sign which God gave to Ahaz, when he refused to ask one, referring to Christ, and our redemption by him (Isa 7:10-16). IV. A threatening of the great desolation that God would bring upon Ahaz and his kingdom by the Assyrians, notwithstanding their escape from this present storm, because they went on still in their wickedness (Isa 7:17-25). And this is written both for our comfort and for our admonition.

7:1–39:8 In this long section of the book, the nation of Israel was confronted with a vision of God, similar to how Isaiah was confronted in ch 6. 7:3 The aqueduct was a place where political negotiations took place later during Hezekiah’s reign (see 36:2).