The interpretation timeline
Jeremiah 31:8 Douay-Rheims

Behold I will bring them from the north country, and will gather them from the ends of the earth: and among them shall be the blind, and the lame, the woman with child, and she that is bringing forth, together, a great company of them returning hither.

A.D. 220 – 1871 5 witnesses

Patristic

before A.D. 750
220
A.D.
Tertullian Patristic
c. A.D. 150–220
“When Jeremiah says, "And I will gather them together from the extremities of the land in the feast day," he signifies the day of the Passover and of Pentecost, which is properly a "feast day." However, every day is the Lord's. Every hour, every time, is apt for baptism. If there is a difference in the solemnity, there is no distinction in the grace.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“the blind and the lame amongst them Even the staggering ones among them I will not reject.”
1252
A.D.
Thomas Aquinas Catholic
1225–1274
“Here he continues the order of the operation, and concerning this there are two things. First, he leads them to exultation: "Exult in gladness." Ps. 80: "Exult to God our helper, shout for joy to the God of Jacob." To express this exultation he enjoins the taunting of enemies: "and neigh," taunting, "against the head of the nations," that is, the king of Babylon, or of the Assyrians, who took you captive. Habac. 2: "Shall they not rise up suddenly that shall bite you, and awake that shall tear you, and you shall be a spoil to them?" And also divine praise: "sound aloud," on psalteries, and the like. Second, he sets down the order of liberation: "Behold, I will bring them," describing the starting point of the return, "from the land of the north," and the assembly of those returning, among whom; as if to say: no one will be hindered from the return by any infirmity of body; this is because they will come securely. Isa. 35: "the lame shall be leaping like a hart." And also the manner of the return, "in weeping": some on account of the joy of the return, and some seeing the devastation of the land. 1 Esdr. 3: "nor could anyone discern the voice of the shout of those rejoicing, and the voice of the weeping of the people." "And in mercy I will bring them back," away from the shame of mind. Isa. 54: "in great mercies I will gather you." "By torrents of waters," by which those sailing go easily, and alongside which there are good roads; in which the labor of the journey, and tedium, is excluded. Prov. 3: "You shall walk confidently in your way, and your foot shall not stumble." Third, he assigns the reason from the paternal affection by which he is moved toward them: "for I have become a father"; whence, as a father, I cannot but have mercy on them. For among all peoples Israel is the firstborn. Exod. 4: But to the sons of Joseph the birthright was given, as is said in 1 Paral. 5, in which Ephraim is preferred to Manasseh: Gen. 48: whence it follows that Ephraim is the firstborn.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Behold, I will bring them from the north country,.... As from Babylon, at the end of the seventy years' captivity, which lay north of Judea; so, in the latter day, from those northern countries, as ours, where they now are in great numbers: and gather them from the coasts of the earth; or "sides" of it; from all the parts of the world where they are: and with them the blind and the lame, the woman with child and her that travaileth with child together; signifying that no difficulties whatsoever should hinder them in their return to their own land; provision should be made for persons under these circumstances, so unfit to travel. All this may be understood, in a figurative sense, of those who are spiritually "blind"; who are made to see their lost estate, and need of Christ; and are brought to him, and to his church, in a way they had not known, and in paths they knew not before: and of the lame and impotent, unable to do any good thing in a spiritual sense, and will not come to Christ, unless drawn; these are made to leap as a hart, and to flee to Christ for refuge, and run the ways of his commandments: and of such who are laden and burdened, as "women with child"; and who are encouraged and enabled as such to come to Christ, and cast their burdens on him, and find rest for their souls: and of such who are in pain and distress, as one "that travaileth with child": in the pangs of the new birth, under a sense of wrath, and as ready to perish; who also are enabled to come and venture their souls on Christ, receive his Gospel, and submit to his ordinances, where they find peace and comfort: a great company shall return thither; three thousand were converted under one sermon, in the first times of the Gospel; and, in the latter day, the nation of the Jews shall be born again at once; the number of the children of Israel shall then be as the sand of the sea, and great shall be the day of Jezreel, Isa 66:8.”
Source
1871
A.D.
1871
“north--Assyria, Media, &c. (see on Jer 3:12; Jer 3:18; Jer 23:8). gather from . . . coasts of . . . earth-- (Eze 20:34, Eze 20:41; Eze 34:13). blind . . . lame, &c.--Not even the most infirm and unfit persons for a journey shall be left behind, so universal shall be the restoration. a great company--or, they shall return "in a great company" [MAURER].”
Source
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.