The interpretation timeline
Luke 1:41 Douay-Rheims

And it came to pass, that when Elizabeth heard the salutation of Mary, the infant leaped in her womb. And Elizabeth was filled with the Holy Ghost:

A.D. 253 – 1871 6 witnesses

Patristic

before A.D. 750
253
A.D.
Origen Patristic
c. A.D. 184–253
“(vid. etiam Tit. Bos.) He was not filled with the Spirit, until she stood near him who bore Christ in her womb. Then indeed he was both filled with the Spirit, and leaping imparted the grace to his mother; as it follows, And Elisabeth was filled with the Holy Spirit. But we cannot doubt that she who was then filled with the Holy Spirit, was filled because of her son.”
Source
397
A.D.
Ambrose of Milan Patristic
A.D. 339–397
“But soon the blessed fruits of Mary’s coming and our Lord’s presence are made evident. For it follows, And it came to pass, that when Elisabeth heard the salutation of Mary, the babe leaped in her womb. Mark the distinction and propriety of each word. Elisabeth first heard the word, but John first experienced the grace. She heard by the order of nature, he leaped by reason of the mystery. She perceived the coming of Mary, he the coming of the Lord.”
Source

Reformation

c. 1500 – 1650
1637
A.D.
1567–1637
“And it came to pass when Elizabeth heard the salutation of Mary , &c. Notice with S. Ambrose, that Elizabeth was the first to hear the salutation of Mary, but John was the first to perceive the spirit and effect of her salutation ; for to him, as the future forerunner of Christ, this salutation of the Virgin, yea, even of Christ, was chiefly directed. Theophylact says, " The voice of the Virgin was the voice of God incarnate in her.” It is a question here whether the leaping of John for joy (Vulgate ex ultavit, Greek itfx/fnjon) was a natural or rational movement Calvin thinks that it was only a natural one ; but all the Fathers and Orthodox Doctors are of a contrary opinion. Origen says, “Then first Jesus made His forerunner a prophet,” and Irenaeus (lib. 3 c. 18) says, u He recognised the Lord in the womb, and leaping for joy saluted Him.” And S. Gregory (lib. 3 Moral c. 5), “ In his mother’s womb he was filled with the spirit of prophecy.” So also S. Cyril, S. Ambrose, S. Chrysostom. All these maintain that this leaping of John was not only supernatural, but showed an active use of reason, and proceeded from true joyfulness of mind ; and this is clear from the words of Elizabeth ; The babe leaped in my womb for joy. Secondly, this is clear, likewise, from the circumstance that John communicated his joy to his mother. Thirdly, because in like manner the Blessed Virgin rejoiced when she sang the Magnificat, therefore also John rejoiced, who was the chief end and object of the visitation of the Blessed Virgin and of all these wonders. John at this time received the gift of prophecy, as the Fathers already quoted show. He likewise received the extraordinary gifts which befitted the future forerunner of Christ For this had been predicted by the angel when he said, 11 he shall be filled with the Holy Ghost from his mother’s womb.n In John, therefore, that saying of S. Chrysostom (Horn. 30) is true, “ his leaping was a sign of perfect soundness ; ” and also, of sanctity. Hence some think that John was free from sinful desire, and never committed venial sin ; but this privilege seems to have been Digitized by Google ELIZABETH'S SALUTATION. 39 peculiar to the Blessed Virgin, to whom John was inferior. He had, therefore, sinful desire, and did commit venial sin, falling into it unawares, but, perhaps, never deliberately. For it is a rule of S. Augustine and of theologians, that whoever has or has had original sin, has also sinful desire, and consequently commits venial sin ; but John had original sin, therefore he must have committed venial sin. Learn, morally, of what advantage the salutation and prayers of the Saints are, and especially of the Blessed Virgin, who by one word of salutation filled both John and Elisabeth with the Holy Spirit “ Not only the words, but the very aspect of the Saints is full of spiritual grace,’1 says S. Chrysostom. For the Saints, and above all the Blessed Virgin, are full of the fiery spirit of love. Wherefore he who strives to make other men spiritual should first fill himself with the Divine Spirit ; for thus when he speaks he will breathe the same forth upon others, for out of the abundance of the heart the mouth speaketh. God also uses such men as suitable instruments united to Himself. For He is a most pure and powerful spirit; wherefore He accomplishes mighty spiritual results by means of spiritual men full of zeal, as being like Himself. And Elizabeth was filled , <kc. She who was before just and holy (verse 6) is now made much more just and holy, and besides received the gift of prophecy. Moreover John, as I said, was first filled with the Spirit, and then filled his mother also with the same ; because by his own holiness, merits, and prayers, he obtained for his mother that she should be filled with the Holy Spirit, of which he was himself full So S. Ambrose says, “ Elizabeth first heard the word, but John first experienced the grace. The mother was not filled before the son, but when the son had been filled with the Holy Spirit, he filled the mother also.””
Source

Post-Reformation

c. 1650 – 1900
1832
A.D.
Adam Clarke Methodist
1762–1832
“Elisabeth was filled with the Holy Ghost - This seems to have been the accomplishment of the promise made by the angel, Luk 1:15, He shall be filled with the Holy Ghost, even from his mother's womb. The mother is filled with the Holy Spirit, and the child in her womb becomes sensible of the Divine influence.”
1849
A.D.
1774–1849
“The infant leaped in her womb. [7] According to the general opinion of the interpreters, this motion of the child at the time was not natural: and some think that God gave to St. John [the Baptist], even in his mother’s womb, a passing knowledge of the presence of his Redeemer. See St. Augustine in the above cited letter to Dardanus. (Witham)”
Source
1871
A.D.
1871
“babe leaped--From Luk 1:44 it is plain that this maternal sensation was something extraordinary--a sympathetic emotion of the unconscious babe, at the presence of the mother of his Lord.”
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.