Augustine of Hippo
Catena Aurea · Markusevangelium 13
And then if any man shall say to you, Lo, here is Christ; or, lo, he is there; believe him not: For false Christs and false prophets shall rise, and shall shew signs and wonders, to seduce, if it were possible, even the elect. But take ye heed: behold, I have foretold you all things. But in those days, after that tribulation, the sun shall be darkened, and the moon shall not give her light, And the stars of heaven shall fall, and the powers that are in heaven shall be shaken. And then shall they see the Son of man coming in the clouds with great power and glory. And then shall he send his angels, and shall gather together his elect from the four winds, from the uttermost part of the earth to the uttermost part of heaven.
(Epist. 78) For He did not only foretel to His disciples the good things which He would give to His saints and faithful ones, but also the woes in which this world was to abound, that we might look for our reward at the end of the world with more confidence, from feeling the woes in like manner announced as about to precede the end of the world.