The interpretation timeline
Mark 13:29 Douay-Rheims

So you also when you shall see these things come to pass, know ye that it is very nigh, even at the doors.

A.D. 430 – 1771 2 witnesses

Patristic

before A.D. 750
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“(Epist. 119, 11) All that is said by the three Evangelists concerning the Advent of our Lord, if diligently compared together and examined, will perchance be found to belong to His daily coming in His body, that is, the Church, except those places where that last coming is so promised, as if it were approaching; for instance in the last part of the discourse according to Matthew, the coming itself is clearly expressed, where it is said, When the Son of Man shall come in his glory. (Matt. 25:31) For what does he refer to in the words, when ye shall see these things come to pass, but those things which He has mentioned above, amongst which it is said, And then ye shall see the Son of Man coming in the clouds. The end therefore shall not be then, but then it shall be near at hand. Or are we to say, that not all those things which are mentioned above are to be taken in, but only some of them, that is, leaving out these words, Then shall ye see the Son of man coming; for that shall be the end itself, and not its approach only. But Matthew has declared that it is to be received without exception, saying, When ye shall see all these things, know that it is near, even at the doors. That which is said above must therefore be taken thus; And he shall send his angels, and gather together the elect from the four winds; that is, He shall collect His elect from the four winds of heaven, which He does in the whole of the last hour, coming in His members as in clouds.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Heaven and earth shall pass away,.... Which may be understood either affirmatively, as what will be at the second coming of Christ; or comparatively, rather than any thing said by Christ should; and so shows the certainty and irreversibleness of his predictions, as it follows: but my words shall not pass away; which is true of all the words of Christ he ever spake, and here particularly relates to those he had just delivered, concerning the calamities that should come upon the Jewish nation; See Gill on Mat 24:35.”
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.