The interpretation timeline
Luke 1:48 Douay-Rheims

Because he hath regarded the humility of his handmaid; for behold from henceforth all generations shall call me blessed.

A.D. 253 – 1849 9 witnesses 11 excerpts

Patristic

before A.D. 750
253
A.D.
Origen Patristic
c. A.D. 184–253
“But why was she lowly and cast down, who carried in her womb the Son of God? Consider that lowliness, which in the Scriptures is particularly praised as one of the virtues, is called by the philosophers “modestia.” And we also may paraphrase it, that state of mind in which a man instead of being puffed up, casts himself down.”
Source
373
A.D.
c. A.D. 296–373
“For if as the Prophet says, Blessed are they who have seed in Sion, and kinsfolk in Jerusalem, (Isa. 31:9. apud LXX.) how great should be the celebration of the divine and ever holy Virgin Mary, who was made according to the flesh, the Mother of the Word?”
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“(Pseudo-Aug. Serm. de Assumpt 208.) O true lowliness, which hath borne God to men, hath given life to mortals, made new heavens and a pure earth, opened the gates of Paradise, and set free the souls of men. The lowliness of Mary was made the heavenly ladder, by which God descended upon earth. For what does regarded mean but “approved?” For many seem in my sight to be lowly, but their lowliness is not regarded by the Lord. For if they were truly lowly, their spirit would rejoice not in the world, but in God.”
Source
735
A.D.
Bede the Venerable Patristic
c. A.D. 672–735
“But she, whose humility is regarded, is rightly called blessed by all; as it follows, For, behold, from henceforth all shall call me blessed.”
“For it was fitting, that as by the pride of our first parent death came into the world, so by the lowliness of Mary should be opened the entrance into life.”

Scholastic

c. 1100 – 1500
1107
A.D.
c. 1055–1107
“And therefore she says, all generations, not only Elisabeth, but also every nation that believed.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“For he hath regarded the low estate of his handmaiden,.... Meaning, either her outward temporal estate, which was very low and mean: David's family was now very much reduced, it had its seat not at Jerusalem, but at Nazareth, in Galilee: Mary, of that house, was a poor virgin, and Joseph, of the same, to whom she was betrothed, was a poor carpenter; and yet God passed by the rich and noble families of Jewish people, and pitched upon this poor virgin to be the mother of the Messiah: or her estate, in a spiritual sense, which, as that of every son and daughter of Adam, was very low by the fall; for sin has run all mankind into debt, and they have nothing to pay: it has stripped them of original righteousness, and clothed them with rags; it has filled them with diseases, from the crown of the head to the sole of the feet; it has exposed them to a prison, into which being cast, they must lie, till they have paid the uttermost farthing; and has left them hopeless and helpless, poor and miserable, and blind and naked: but God has remembered his elect, in this their low estate, and has provided a Saviour for them, and sent him to deliver them out of it; because his mercy endures forever; and this Mary was sensible, and there rejoiced in God her Saviour: for behold, from henceforth all generations; not Jews only, but Gentiles also, shall call me blessed; both on account of her son she had now conceived, and was bearing; because she was the mother of our Lord, who had reason so to conclude, from the nature of the thing, and from the words of the angel, and of Elisabeth, Luk 1:28 and much more than Leah had, who said something like this, at the birth of her second son, Gen 30:13 and also on account of her interest in Christ, as God her Saviour: in whom she was blessed, with all spiritual blessings; so that she was truly blessed, and might well be called so.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“He hath regarded - Looked favorably, etc., επεβλεψεν. In the most tender and compassionate manner he has visited me in my humiliation, drawing the reasons of his conduct, not from any excellence in me, but from his own eternal kindness and love. All generations shall call me blessed - This was the character by which alone she wished to be known; viz. The blessed or happy virgin. What dishonor do those do to this holy woman, who give her names and characters which her pure soul would abhor; and which properly belong to God her Savior! By her votaries she is addressed as Queen of Heaven, Mother of God, etc., titles both absurd and blasphemous.”
Source
1849
A.D.
1774–1849
“The humility of his handmaid, [9] i.e. the humble, low, and abject condition; as perhaps might be translated both in this and in ver. 52. For the blessed Virgin does not here commend and praise her own virtue of humility; as divers interpreters observe. See St. Francis de Sales, in his introduction to a devout life, part 3, chap. vi. (Witham) — As death entered into the world by the pride of our first parents, so was it proper that the path to life should be opened by the humility of Mary. (Ven. Bede) — Not Elizabeth only, but all nations of believers are to call her blessed. (Theophylactus)”
Source

Undated

date unknown
date
unknown
“(Isidore.) She gives the reason why it becomes her to magnify God and to rejoice in Him, saying, For he hath regarded the lowliness of his handmaiden; as if she said, “He Himself foresaw, therefore I did not look for Him.” I was content with things lowly, but now am I chosen unto counsels unspeakable, and raised up from the earth unto the stars.”
Source
“(Metaphrastes.) She does not call herself blessed from vain glory, for what room is there for pride in her who named herself the handmaid of the Lord? But, touched by the Holy Spirit, she foretold those things which were to come.”
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.