Isaiah 7:14

“Therefore the Lord himself shall give you a sign, &c.] Whether they would ask one or not; a sign both in heaven and earth, namely, the promised Messiah; who being the Lord from heaven, would take flesh of a virgin on earth; and who as man, being buried in the heart of the earth, would be raised from thence, and ascend up into heaven; and whose birth, though it was to be many years after, was a sign of present deliverance to Judah from the confederacy of the two kings of Syria and Israel; and of future safety, since it was not possible that this kingdom should cease to be one until the Messiah was come, who was to spring from Judah, and be of the house of David; wherefore by how much the…”

“himself--since thou wilt not ask a sign, nay, rejectest the offer of one. you--for the sake of the house of believing "David" (God remembering His everlasting covenant with David), not for unbelieving Ahaz' sake. Behold--arresting attention to the extraordinary prophecy. virgin--from a root, "to lie hid," virgins being closely kept from men's gaze in their parents' custody in the East. The Hebrew, and the Septuagint here, and Greek (Mat 1:23), have the article, the virgin, some definite one known to the speaker and his hearers; primarily, the woman, then a virgin, about immediately to become the second wife, and bear a child, whose attainment of the age of discrimination (about three years)…”

“Therefore - Since you will not “ask” a pledge that the land shall be safe, Yahweh will furnish one unasked. A sign or proof is desirable in the case, and Yahweh will not withhold it because a proud and contemptuous monarch refuses to seek it. Perhaps there is no prophecy in the Old Testament on which more has been written, and which has produced more perplexity among commentators than this. And after all, it still remains, in many respects, very obscure. Its general original meaning is not difficult. It is, that in a short time - within the time when a young woman, then a virgin, should conceive and bring forth a child, and that child should grow old enough to distinguish between good and…”

“Therefore - Because you despise me, and the sign which I now offer to you, God of his own free grace will send you a more honourable messenger, and give you a nobler sign. A sign - Of your deliverance. But how was this birth, which was not to happen 'till many ages after, a sign of their deliverance from present danger? This promised birth supposed the preservation of that city, and nation and tribe, in and of which the Messiah was to be born; and therefore there was no cause to fear that ruin which their enemies now threatened. Immanuel - God with us; God dwelling among us, in our nature, Joh 1:14. God and man meeting in one person, and being a mediator between God and men. For the design…”

“7:14 This prophecy received its ultimate fulfillment in the birth of Jesus Christ (Matt 1:18-24). Yet it is likely that it also had a partial fulfillment in Isaiah’s day, either with the birth of godly king Hezekiah, Ahaz’s son, or with the birth of one of Isaiah’s children. The similar sequence of the verbs in Isa 7:14 and 8:3 (conceive . . . give birth . . . call) and the link between Immanuel and Maher-shalal-hash-baz in 8:5-10 suggest that Immanuel and Maher-shalal-hash-baz were the same person. • The name Immanuel (which means ‘God is with us’) symbolized God’s presence and protection. God was with Judah during the attack by the alliance of Syria and Israel (734 BC), in the Assyrian…”

“Behold: Gen 3:15; Jer 31:22; Mat 1:23; Luk 1:35 shall call: or, thou, O virgin shall call: Gen 4:1, Gen 4:2, Gen 4:25, Gen 16:11, Gen 29:32, Gen 30:6, Gen 30:8; Sa1 1:20, Sa1 4:21 Immanuel: Isa 8:8, Isa 9:6; Joh 1:1, Joh 1:2, Joh 1:14; Rom 9:5; Ti1 3:16 Isaiah 7:15”

“"Therefore the Lord, He will give you a sign: Behold, the virgin conceives, and bears a son, and calls his name Immanuel. Butter and honey will he eat, at the time that he knows to refuse the evil and choose the good." In its form the prophecy reminds one of Gen 16:11, "Behold, thou art with child, and wilt bear a son, and call his name Ishmael." Here, however, the words are not addressed to the person about to bear the child, although Matthew gives this interpretation to the prophecy; (Note: Jerome discusses this diversity in a very impartial and intelligent manner, in his ep. ad Pammachium de optimo genere interpretandi.) for קראת is not the second person, but the third, and is synonymous…”