Matthew 1:20

But we are not to think that she ceased to be betrothed, because she is here called wife, since we know that this is the Scripture manner to call the man and woman, when espoused, husband and wife; and this is confirmed by that text in Deuteronomy, If one find a virgin that is betrothed to a man in the field, and offer violence to her, and lie with her, he shall die, because he hath humbled his neighbour's wife. (Deut. 22:23.)

(Verse 20.) Joseph, son of David, do not be afraid to take Mary as your wife. For what is conceived in her is from the Holy Spirit. She will give birth to a son. And as we said before, the term 'spouses' is used for wives, as the book against Helvidius explains more fully. And an angel speaks to Joseph in a dream with gentle affection, to confirm the righteousness of his silence. It is also noteworthy that Joseph is said to be the son of David, in order to show that Mary is also from the line of David.

By addressing him as son of David, he sought to recal to his memory the promise of God to David, that of his seed should Christ be born. Also by the words, Fear not, he desired to show that he knew the heart; that by this he might have the more faith in those good things to come, which he was about to speak concerning Christ. There were three reasons why the Angel appeared to Joseph with this message. First, that a just man might not be led into an unjust action, with just intentions. Secondly, for the honour of the mother herself, for had she been put away, she could not have been free from evil suspicion among the unbelievers. Thirdly, that Joseph, understanding the holy conception, might keep himself from her with more care than before He did not appear to Joseph before the conception, that he should not think those things that Zacharias thought, nor suffer what he suffered in falling into the sin of unbelief concerning the conception of his wife in her old age. For it was yet more incredible that a virgin should conceive, than that a woman past the age should conceive.

The matter then being in this state, and all at their wits' end, the angel comes to solve all their difficulties. But it is worth inquiring, why the angel did not speak sooner, before the husband had such thoughts: but, "when he thought on it," not until then, he came; for it is said, "While he thought on these things, the angel" comes. And yet to her he declares the good tidings even before she conceived. And this again contains another difficulty; for even though the angel had not spoken, wherefore was the Virgin silent, who had been informed by the angel; and why, when she saw her betrothed husband in trouble, did she not put an end to his perplexity? Wherefore then did not the angel speak before Joseph became troubled. For we must needs explain the former difficulty first. For what reason then did he not speak? Lest Joseph should be unbelieving, and the same happen to him as to Zacharias. For when the thing was visible, belief was thenceforth easy; but when it had not yet a beginning, it was not equally easy to receive his saying. For this reason the angel spake not at the first, and through the same cause the Virgin too held her peace. For she did not think to obtain credit with her betrothed husband, in declaring to him a thing unheard of, but rather that she should provoke him the more, as though she were cloking a sin that had been committed. Since if she herself, who was to receive so great a favor, is affected somewhat after the manner of man, and saith, "How shall this be, seeing I know not a man?" much more would he have doubted; and especially when hearing it from the woman who was under suspicion. Wherefore the Virgin saith nothing to him, but the angel, the time demanding it, presents himself to him. Why then, it may be asked, did he not so in the Virgin's case also, and declare the good tidings to her after the conception? […]

As her betrothed husband also he is admonished not to be afraid; for the mind that compassionates has most fear; as though he were to say, Here is no cause of death, but of life; she that brings forth life, does not deserve death.

How the Angel appeared to Joseph is declared in the words, In his sleep; that is, as Jacob saw the ladder offered by a kind of imagining to the eyes of his heart. Or, to take her, that is, in marriage union and continual converse.

(Serm. in App. 195.) Yet though Joseph think on these things, let not Mary the daughter of David be troubled; as the word of the Prophet brought pardon to David, so the Angel of the Saviour delivers Mary. Behold, again appears Gabriel the bridesman of this Virgin; as it follows, Behold the Angel of the Lord appeared to Joseph. (Hil. Quæst. N. et V. Test. qu. 52.) But if Christ was born by the agency of the Holy Ghost, how is that said, Wisdom hath built herself an house? (Prov. 9:1.) That house may be taken in two meanings. First, the house of Christ is the Church, which He built with His own blood; and secondly, His body may be called His house, as it is called His temple. But the work of the Holy Spirit, is also the work of the Son of God, because of the unity of their nature and their will; for whether it be the Father, or the Son, or the Holy Spirit, that doeth it, it is the Trinity that works, and what the Three do, is of One God.

(part ap. Anselm. part in Ord.) Or, being unwilling to bring her home to his house to live with him for ever, he was minded to put her away privily; that is, to change the time of their marriage. For that is true virtue, when neither mercy is observed without justice, nor justice without mercy; both which vanish when severed one from the other. Or he was just because of his faith, in that he believed that Christ should be born of a virgin; wherefore he wished to humble himself before so great a favour. (ap. Ans.) In this is to be noted the wise soul that desires to undertake nothing rashly. (part Int. part Anselm.) The Angel appearing calls him by name, and adds his descent, in order to banish fear, Joseph, son of David; Joseph, as though he were known to him by name and his familiar friend. (ord.) To be born in her, and born of her, are two different things; to be born of her is to come into the world; to be born in her, is the same as to be conceived. Or the word born is used according to the foreknowledge of the Angel which he has of God, to whom the future is as the past.

But as he considered this... Here we are introduced to the person revealing, and three things are mentioned: first, the time; secondly, the person revealing is introduced; thirdly, the manner of the revelation is expressed. He says, therefore: But as he considered this, i.e., while …

But while he pondered these things, behold, the angel of the Lord appeared unto him in a dream, saying. When the righteous one was uncertain, then the angel appeared in order to show him what to do. The angel appeared to him in a dream, …

But while he thought on these things,....

Note, It is a great mercy to be delivered from our fears, and to have our doubts resolved, so as to proceed in our affairs with satisfaction. He is here informed concerning that holy thing with which his espoused wife was now pregnant. That which is conceived in her is of a divine original.

That which is conceived (or formed) in her - So I think γεννηθεν should be translated in this place: as it appears that the human nature of Jesus Christ was a real creation in the womb of the virgin, by the power of the Holy Spirit. The angel of the Lord mentioned here was probably the angel Gabriel, who, six months before, bad been sent to Zacharias and Elisabeth, to announce the birth of Christ’s forerunner, John the Baptist. See Luk 1:36.

To believe on the Lord Jesus Christ with all our heart is one of the simplest things imaginable. To trust Christ, to depend upon His power and faithfulness is such a childlike act that one sees no extraordinary difficulty in it. Yet, to bring the human mind to exercise simple faith in Jesus is a work of the most astounding power.

THESE verses begin by telling us two great truths. They tell us how the Lord Jesus Christ took our nature upon him, and became man. They tell us also that his birth was miraculous. His mother Mary was a virgin. These are very mysterious subjects. They are depths, which we have no line to fathom. They are truths, which we have not mind enough to comprehend. Let us not attempt to explain things which are above our feeble reason. Let us be content to believe with reverence, and let us not speculate about matters which we cannot understand.

THESE verses begin by telling us two great truths. They tell us how the Lord Jesus Christ took our nature upon him, and became man. They tell us also that his birth was miraculous. His mother Mary was a virgin. These are very mysterious subjects. They are depths, which we have no line to fathom. They are truths, which we have not mind enough to comprehend. Let us not attempt to explain things which are above our feeble reason. Let us be content to believe with reverence, and let us not speculate about matters which we cannot understand. Enough for us to know that with him who made the world nothing is impossible. We may safely rest in the words of the Apostles’ Creed: “Jesus Christ was conceived by the Holy Ghost, and born of the Virgin Mary.” Let us observe the conduct of Joseph described in these verses. It is a beautiful example of godly wisdom, and tender consideration for others. He saw the “appearance of evil” in her who was his espoused wife. But he did nothing rashly. He waited patiently to have the line of duty made clear. In all probability he laid the matter before God in prayer. “He that believeth shall not make haste.” ( Isaiah 28:16 ) The patience of Joseph was graciously rewarded. He received a direct message from God upon the subject of his anxiety, and was at once relieved from all his fears. How good it is to wait upon God! Who ever casts his cares upon God in hearty prayer, and found him fail? “In all thy ways acknowledge him, and he shall direct thy paths.” ( Proverbs 3:6 ) Let us observe in these verses, the two names given to our Lord . One is “Jesus:” the other “Emmanuel.” One describes his office, the other his nature. Both are deeply interesting. The name Jesus means “Saviour.” It is the same name as “Joshua” in the Old Testament. It is given to our Lord because “he saves his people from their sins.” This is his special office.

To believe on the Lord Jesus Christ with all our heart is one of the simplest things imaginable. To trust Christ, to depend upon His power and faithfulness is such a childlike act that one sees no extraordinary difficulty in it. Yet, to bring the human mind to exercise simple faith in Jesus is a work of the most astounding power. To bring down the pride of man, to subjugate his will and to captivate his passions so that he shall cheerfully accept that which God presents to him in the Person of Christ Jesus, is a labor worthy of God. How strangely vile are they who cannot be brought to know their own mercies, except by an Omnipotent power! The blessed Spirit of God is always the secret Author of faith. It is not of ourselves, it is the gift of God. Our text twice over uses the strongest words which could be employed to set forth the Almighty power exhibited in bringing a soul to believe in Jesus and in bringing that believing soul onward till it ascends to Heaven. You will carefully notice we have first of all this expression, "The exceeding greatness of His power." And then we have on the other side of the word "Believe," lest it should escape from the sacred barrier, these words, "According to the working of His mighty power." Now, the first expression is a very amazing one. It might be read thus—"The superexcellent, sublime, overcoming, or triumphing greatness of His power." And the other is even more singular—it is a Hebrew mode of speech forced to do duty in the Greek tongue—"The effectual working of the might of His strength." Or, "The energy of the force of His power," or some such strong expression as that.

He thought on these things - He did not act hastily. He did not take the course which the law would have permitted him to do, if he had been hasty, violent, or unjust. It was a case deeply affecting his happiness, his character, and the reputation and character of his chosen companion. God will guide the thoughtful and the anxious. And when we have looked patiently at a perplexed subject, and know not what to do, then God, as in the case of Joseph, will interpose to lead us and direct our way. Psa 25:9. The angel of the Lord - The word “angel” literally means a messenger. It is applied chiefly in the Scriptures to those invisible holy beings who have not fallen into sin: who live in heaven (1Ti 5:21; compare Jud 1:6); and who are sent forth to minister to those who shall be heirs of salvation. See the Heb 1:13-14 notes, and Dan 9:21 note. The word is sometimes applied to men, as messengers Luk 7:24; Luk 9:52; Jas 2:25; to the winds Psa 104:4; to the pestilence Psa 78:49; or to whatever is appointed to make known or to execute the will of God. It is commonly applied, however, to the unfallen, happy spirits that are in heaven, whose dignity and pleasure it is to do the will of God. Various ways were employed by them in making known the will of God, by dreams, visions, assuming a human appearance, etc. In a dream - This was a common way of making known the will of God to the ancient prophets and people of God, Gen 20:3; Gen 30:1, Gen 30:11, Gen 30:24; Gen 37:5; Gen 41:1; 1Ki 3:5; Dan 7:1; Job 4:13-15; compare my notes at Isaiah. In what way it was ascertained that these dreams were from God cannot now be ascertained, It is sufficient for us to know that in this way many of the prophecies were communicated, and to remark that there is no evidence that we are to put reliance on our dreams. […]