The interpretation timeline
Matthew 1:24 Douay-Rheims

And Joseph rising up from sleep, did as the angel of the Lord had commanded him, and took unto him his wife.

A.D. 420 – 1871 8 witnesses 16 excerpts

Patristic

before A.D. 750
420
A.D.
Jerome Patristic
c. A.D. 347–420
“(cont. Helvid. 8.) Lastly, I would ask, Why then did Joseph abstain at all up to the day of birth? He will surely answer, Because of the Angel’s words, That which is born in her, &c. He then who gave so much heed to a vision as not to dare to touch his wife, would he, after he had heard the shepherds, seen the Magi, and known so many miracles, dare to approach the temple of God, the seat of the Holy Ghost, the Mother of his Lord?”
Source
“From the words, her firstborn Son, some most erroneously suspect that Mary had other sons, saying that first-born can only be said of one that has brethren. But this is the manner of Scripture, to call the first-born not only one who is followed by brethren, but the first-birth of the mother.”
“(Cont. Helvid. 10.) For if he only was first-born who was followed by other brethren, then no first-birth could be due to the Priests, till such time as the second birth took place.”

Medieval

c. 750 – 1100
908
A.D.
c. A.D. 841–908
“Life returned by the same entrance through which death had entered in. By Adam’s disobedience we were ruined, by Joseph’s obedience we all begin to be recalled to our former condition; for in these words is commended to us the great virtue of obedience, when it is said, And Joseph rising from sleep, did as the Angel of the Lord had commanded him.”
Source
“Or, Took her so far, as that the nuptial rites being complete, she was called his wife; but not so far as to lie with her, as it follows, And knew her not.”
“It is clear that this Name was well known to the Holy Fathers and the Prophets of God, but to him above all, who spake, My soul fainted for Thy salvation; (Ps. 119:81.) and, My soul hath rejoiced in Thy salvation. Also to him who spake, I will joy in God my Saviour. (Ps. 13:5. Hab. 3:18.)”

Scholastic

c. 1100 – 1500
1256
A.D.
Thomas Aquinas Catholic
1225–1274
“Above, the Evangelist proved that the Mother of God conceived of the Holy Spirit from two things, namely from the revelation of the Angel and from the foretelling of the prophet; he intends to show this same thing from the obedience of Joseph, who would not have acquiesced to the words of the Angel so as to take Mary as his spouse, unless he had known her to be pregnant by the Holy Spirit. And concerning this he does two things: first, the obedience of the spouse himself to the Angel is set forth; second, the manner of the obedience is described, there at "and he took." And note that because through the disobedience of the first man we fell into sin — Romans 5:19: "through the disobedience of one man many were made sinners" — therefore at the beginning of our reparation obedience is set forth. And we can note four things which are necessary for obedience. The first is that it be ordered. And I say ordered, because first vices must be abandoned, and afterward one must obey unto the operation of the virtues; Jeremiah 4:3: "Break up your fallow ground, and sow not upon thorns," and so forth. And therefore here it is said that Joseph, rising up from sleep — namely, from the sleep of sloth and of doubt. Concerning this sleep it is said, Ephesians 5:14: "Rise, you who sleep, and arise from the dead." The second, indeed, is that it must be prompt: and this is what is said, Ecclesiasticus 5:8: "Delay not from day to day, be not slow to turn to the Lord; for his wrath will come suddenly." And therefore here it is said that he immediately did as he commanded him. The Gloss: whoever is admonished by God should dissolve delays, rise from sleep, and do what is commanded. The third, indeed, is that it must be perfect, so that not only what is commanded is done, but it is done in the manner in which it is commanded and in the way in which it is enjoined upon them. Hence here it is said "as he had commanded." The Gloss: perfect obedience. Colossians 3:20: "Children, obey your parents in all things." The fourth is that it must be discreet, so that obedience is given to him to whom it is owed, and in that in which it is owed, so that nothing is done against God: hence it says that he did as the Angel commanded him — not an evil spirit, but one of God. 1 John 4:1: "Do not believe every spirit, but test the spirits, whether they be of God, because many false prophets have gone out into the world," and so forth. "And he took." Here it is shown in what things he obeyed, and three things are set forth: first, the obedience which he showed to the Angel; second, the reverence which he showed to the mother; third, the compliance which he showed to Christ once born. The Angel commanded Joseph: "Do not fear to take Mary as your wife." And Joseph did as he commanded, and so forth. Whence it is clear that he found the woman good. But did he not already have her in the house? Why then does it say, rising up... he took? Chrysostom answers: because he had not cast her out from the house, but from his heart. Or because she was first taken in betrothal, but the nuptials were still to be celebrated afterward, and then it is said that she is taken, and that she is a wife. And lest anyone should suspect that carnal union intervened, he adds, "and he did not know her." Here it must be known that this word "to know" is taken in two ways in Sacred Scripture: sometimes for recognition, John 14:7: "and henceforth you shall know him, and you have seen him"; sometimes for carnal union, as in Genesis 4:1: "And Adam knew his wife Eve," etc., namely, carnally. But an objection is raised, because it is not said simply that he did not know her, etc., but "until she brought forth her son." Therefore afterward he knew her; whence also Helvidius said that although as a virgin she conceived Christ, nevertheless afterward she had other sons by Joseph. And therefore Jerome says that "until" sometimes signifies something finite and determinate, as if I should say, "I will not come until I eat," because thereby I signify that I am going to come afterward; but sometimes it signifies infinitely and indeterminately, for example 1 Corinthians 15:25: "For he must reign, until he puts all his enemies under his feet." Will he then not reign afterward? Indeed he will; but Scripture uses such a manner of speaking because it intends to remove that which could be doubtful. For it could be doubtful whether he would reign, at a time when he had not yet put his enemies under his feet. Likewise it could be doubtful, once the Blessed Virgin had given birth, whether before the birth she had been known by Joseph — since the first point ought to come into doubt for no one, seeing that the Angels sang: "Glory to God in the highest, and on earth peace to men of good will," Luke 2:14. And this, therefore, is what the Evangelist intends. And Jerome argues excellently against Helvidius: "You say, Helvidius, that before this Joseph did not know her, because he had been admonished in his sleep by the Angel. If, then, an admonition in sleep so availed that he did not join himself to Mary, how much more the knowledge of the Angels, the adoration of the shepherds and of the magi?" Chrysostom, however, took "knowledge" for intellectual recognition: that is, he did not know how great her dignity was; but after she gave birth, he came to know it. Others say that it is taken for sensible recognition, and thus the opinion of these is fairly probable as well. For they say that Moses, from the Lord's speaking with him, had such brightness in his face that the children of Israel could not gaze intently upon his face, 2 Corinthians 3:7. Therefore if Moses had this from his fellowship with God, much more did this Blessed Virgin, who bore him in her womb, have such brightness in her face that Joseph did not recognize her. But the first exposition is more literal. Likewise Helvidius says that the letter states, "until she brought forth her firstborn son." "First" is said with respect to a later one. Therefore she had other children. Jerome answers that it is customary in Sacred Scripture that those are called firstborn whom no others precede: Exodus 13:12 it is said that the firstborn of the Jews were to be offered to the Lord. Jerome asks: was it then necessary to wait, so that they would not be offered until a second one was born? Therefore those are called firstborn whom no others precede; and thus it is to be understood here. The compliance follows. Luke 2:21 carries this out more fully, but Matthew touches on it briefly. For thus the Holy Spirit wills, that what one has said, the other should pass over in silence. "He called his name Jesus"; this name indeed was not a little renowned among the ancients, and desired; Genesis 49:18: "I will look for your salvation, O Lord." And Habakkuk 3:18: "But I will rejoice in the Lord, and I will exult in God my Jesus."”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Then Joseph being raised from sleep,.... That is, being awaked out of sleep, "that sleep", into which he either naturally fell, whilst he was meditating on the affair of Mary's being with child; or rather into which he was cast by the Lord, on purpose that he might have a revelation of the will of God to him in a dream; and rising up from his bed or place where he was, immediately and without any delay, did as the angel of the Lord had bidden him; firmly believing that it was a messenger of God that was sent to him, and that this matter was of the Lord. Wherefore he took unto him his wife, that is, he publicly married her, whom he had before espoused, took her to his house, or continued her there, lived with her as his wife, and owned her to be such, and henceforwards had no more thoughts of putting her away.”
Source
1849
A.D.
1774–1849
“The heretic Helvidius argues from this text, and from what we read in the gospel of Christ’s brethren, that Christ had brothers, and Mary other sons. But it is evident that in the style of the Scriptures, they who were no more than cousins were called brothers and sisters. (Haydock)”
1871
A.D.
1871
“Then Joseph, being raised from sleep--and all his difficulties now removed. did as the angel of the Lord had bidden him, and took unto him his wife--With what deep and reverential joy would this now be done on his part; and what balm would this minister to his betrothed one, who had till now lain under suspicions of all others the most trying to a chaste and holy woman--suspicions, too, arising from what, though to her an honor unparalleled, was to all around her wholly unknown!”
Source

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“(ord. et ap. Anselm ex Beda cit.) He not only did what the Angel commanded, but as he commanded it. Let each one who is warned of God, in like manner, break off all delays, rise from sleep, and do that which is commanded him.”
date
unknown
“Took unto him, not took home to him; for he had not sent her away; he had put her away in thought only, and now took her again in thought.”
“As one might say, ‘He told it not so long as he lived;’ would this imply that he told it after his death? Impossible. So it were credible that Joseph might have known her before the birth, while he was yet ignorant of the great mystery; but after that he understood how she had been made a temple of the Only-begotten of God, how could he occupy that? The followers of Eunomius think, as they have dared to assert this, that Joseph also dared to do it, just as the insane think all men equally mad with themselves.”
Source
“It may be said, that know here signifies simply, to understand; that whereas before he had not understood how great her dignity, after the birth he then knew that she had been made more honourable and worthy than the whole world, who had carried in her womb Him whom the whole world could not contain.”
date
unknown
Glossa Ordinaria Medieval
“Otherwise; On account of the glorification of the most holy Mary, she could not be known by Joseph until the birth; for she who had the Lord of glory in her womb, how should she be known? If the face of Moses talking with God was made glorious, so that the children of Israel could not look thereon, how much more could not Mary be known, or even looked upon, who bare the Lord of glory in her womb? After the birth she was known of Joseph to the beholding of her face, but not to be approached carnally.”
Source
“(Ord.) Or; He is first-born among the elect by grace; but by nature the Only-begotten of God the Father, the only Son of Mary. And called His name Jesus, on the eighth day on which the circumcision took place, and the Name was given.”
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.