Now all this was done - The prophecy here quoted is recorded in Isaiah 7:14. See the notes at that passage. The prophecy was delivered about 740 years before Christ, in the reign of Ahaz, king of Judah. The land of Judea was threatened with an invasion by the united armies of Syria and Israel, under the command of Rezin and Pekah. Ahaz was alarmed, and seems to have contemplated calling in aid from Assyria to defend him. Isaiah was directed, in his consternation, to go to Ahaz, and tell him to ask a sign from God Isaiah 7:10-11; that is, to look to God rather than to Assyria for aid. This he refused to do. He had not confidence in God, but feared that the land would be overrun by the armies of Syria Matthew 1:12, and relied only on the aid which he hoped to receive from Assyria. Isaiah answered that, in these circumstances, the Lord would himself give a sign, or a pledge, that the land should be delivered. The sign was, that a virgin should have a son, and that before that son would arrive to years of discretion, the land would be forsaken by these hostile kings. The prophecy was therefore designed originally to signify to Ahaz that the land would certainly be delivered from its calamities and dangers, and that the deliverance would not be long delayed. The land of Syria and Israel, united now in confederation, would be deprived of both their kings, and thus the land of Judah would be freed from the threatening danger. This appears to be the literal fulfillment of the passage in Isaiah.

Might be fulfilled - It is more difficult to know in what sense this could be said to be fulfilled in the birth of Christ. To understand this, it may be remarked that the word "fulfilled" is used in the Scriptures and in other writings in many senses, of which the following are some:

1. When a thing is clearly predicted, and comes to pass, as the destruction of Babylon, foretold in Isaiah 13:19-22; and of Jerusalem, in Matthew 24.

2. When one thing is typified or shadowed forth by another, and when the event occurs, the type is said to be fulfilled. This was the case in regard to the types and sacrifices in the Old Testament, which were fulfilled by the coming of Christ. See Hebrews 9.

3. When prophecies of future events are expressed in language more elevated and full than the particular thing, at first denoted, demands. Or, in other words, when the language, though it may express one event, is also so full and rich as appropriately to express other events in similar circumstances and of similar import, they may be said to be fulfilled. Thus, for example, the last chapters of Isaiah, from Isaiah 40 onward, foretell the return of the Jews into Babylon, and every circumstance mentioned occurred in their return. But the language is more expanded and sublime than was necessary to express their return. It will also express appropriately a much more important and magnificent deliverance that of the redeemed under the Messiah; and the return of the people of God to him, and the universal spread of the gospel: and therefore it may be said to be fulfilled in the coming of Jesus and the spread of the gospel. So, if there were any other magnificent and glorious events, still, in similar circumstances, and of like character, it might be said also that these prophecies were fulfilled in all of them. The language is so full and rich, and the promises are so grand, that they may appropriately express all these deliverances. This may be the sense in which the prophecy now under consideration may be said to have been fulfilled.

4. Language is said to be fulfilled when, though it was used to express one event, it may be used also to express another. Thus, a fable may be said to be fulfilled when an event occurs similar to the one concerning which it was first spoken. A parable has its fulfillment in all the cases to which it is applicable; and the same remark applies to a proverb, or to a declaration respecting human nature. The statement that "there is none that doeth good" Psalm 14:3 was at first spoken of a particular race of wicked men." Yet it is applicable to others, and in this sense may be said to have been fulfilled. See Romans 3:10. In this use of the word fulfilled, it means, not that the passage was at first intended to apply to this particular thing, but that the words aptly or appropriately express the thing spoken of, and way be applied to it. We may say the same of this which was said of another thing, and thus the words express both, or are fulfilled. The writers of the New Testament seem occasionally to have used the word in this sense.

By the prophet - Isaiah is added here by several MSS., versions, and fathers. The prophecy is taken from Isaiah 7:14.

Now all this was done,.... These are not the words of the Angel, but of the Evangelist; observing that Mary's being with child of the Holy Ghost, and her conception in such an extraordinary manner, whilst a pure virgin, before she and Joseph came together, who though espoused to him, was untouched by him, were all brought about in this way, and with such circumstances,

that it might be fulfilled which was spoken of the Lord by the Prophet; that is, the Prophet Isaiah, and so some copies read. The passage referred to is in Isaiah 7:14 what is there spoken was by divine inspiration; it was spoken of the Lord by the Prophet; the Spirit of the Lord spake by him. Prophets and holy men formerly, spake as they were moved by the Holy Ghost; so that what they said is to be looked upon as the word of God. Now between the prophecy of Isaiah referred to, and the fact here recorded by the Evangelist, is an entire agreement: the prophecy shows the will, counsel, and determination of God about this matter; the accomplishment of it, the faithfulness and veracity of God in his word; the prediction declares that the thing would be, and the thing itself was done, that what was spoken might be fulfilled; not merely by way of accommodation, or in a typical and mystical, but in a strict, proper and literal sense.

Through the prophet (διά)

So the Rev. rightly, instead of by. In quotations from the Old Testament, the writers habitually use the preposition διὰ (through) to denote the instrumentality through which God works or speaks, while they reserve ὑπὸ (by) to express the primary agency of God himself. So here the prophecy in Matthew 1:23was spoken by the Lord, but was communicated to men through his prophet.

Now all this was done, that it might be fulfilled which was spoken of the Lord by the prophet, saying,

1:22 That it might be fulfilled. Matthew neglects no opportunity to show the Jews that their prophets described Christ. The prophecy will be found in Isa 7:14.

Margin of the Lord

See Isa 7:14 Lit. by the Lord through the prophet.

22. Now all this was done, that it might be fulfilled which was spoken of the Lord by the prophet-(Isa 7:14).

saying-as follows.

1:18-25 Let us look to the circumstances under which the Son of God entered into this lower world, till we learn to despise the vain honours of this world, when compared with piety and holiness. The mystery of Christ's becoming man is to be adored, not curiously inquired into. It was so ordered that Christ should partake of our nature, yet that he should be pure from the defilement of original sin, which has been communicated to all the race of Adam. Observe, it is the thoughtful, not the unthinking, whom God will guide. God's time to come with instruction to his people, is when they are at a loss. Divine comforts most delight the soul when under the pressure of perplexed thoughts. Joseph is told that Mary should bring forth the Saviour of the world. He was to call his name Jesus, a Saviour. Jesus is the same name with Joshua. And the reason of that name is clear, for those whom Christ saves, he saves from their sins; from the guilt of sin by the merit of his death, and from the power of sin by the Spirit of his grace. In saving them from sin, he saves them from wrath and the curse, and all misery, here and hereafter. Christ came to save his people, not in their sins, but from their sins; and so to redeem them from among men, to himself, who is separate from sinners. Joseph did as the angel of the Lord had bidden him, speedily, without delay, and cheerfully, without dispute. By applying the general rules of the written word, we should in all the steps of our lives, particularly the great turns of them, take direction from God, and we shall find this safe and comfortable.