Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel.
All Commentaries on Isaiah 7:14 Go To Isaiah 7
Augustine of Hippo
AD 430
But who shall say that Christ and Christians have no connection with Israel, seeing that Israel was the grandson of Abraham, to whom first, as afterwards to his son Isaac, and then to his grandson Israel himself, that promise was given, which I have already mentioned, namely: “In your seed shall all nations be blessed”? That prediction we see now in its fulfillment in Christ. For it was of this line that the Virgin was born, concerning whom a prophet of the people of Israel and of the God of Israel sang in these terms: “Behold, a virgin shall conceive, and bear a son; and they shall call his name Emmanuel.” For by interpretation, Emmanuel means “God with us.” This God of Israel … has forbidden the worship of other gods, … has forbidden the making of idols, … has commanded their destruction, … has by his prophet predicted that the Gentiles from the ends of the earth would say, “Surely our fathers have worshiped lying idols, in which there is no profit.” This same God is he who, by the name of Christ and by the faith of Christians, has ordered, promised and exhibited the overthrow of all these superstitions.