Matthew 24:3

I think Mount Olivet to be a mystery of the Church out of the Gentiles. For the husbandman dwelling on Mount Olivet is the word of God confirmed in the Church, that is, Christ, who ever grafts the branches of the wild olive on the good olive tree of the Fathers. They who have confidence before Christ, seek to learn the sign of the coming of Christ, and of the consummation of this world. And the coming of the Word into the soul is of two sorts. The first is that foolish preaching concerning Christ, when we preach that Christ was born and crucified; the second its coming in perfect men, concerning which it is said, We speak wisdom among them that are perfect; (1 Cor. 2:6.) and to this second coming is added the end of the world in the perfect man to whom the world is crucified.

And because the questions of the disciples are threefold, they are separated by different times and meanings. That concerning the destruction of the city is first answered, and is then confirmed by truth of doctrine, that no seducer might prevail with the ignorant.

"And as He sat upon the mount of Olives, the disciples came unto Him privately, saying, Tell us when shall these things be? and what shall be the sign of Thy coming, and of the end of the world?" Therefore did they come unto Him privately, as it was of such matters they meant to inquire. For they were in travail to know the day of His coming, because of their eager desire to behold that glory, which is the cause of countless blessings. And these two things do they ask him, when shall these things be? that is, the overthrow of the temple; and, what is the sign of thy coming? But Luke saith, the question was one concerning Jerusalem, as though they were supposing that then is His coming. And Mark saith, that neither did all of them ask concerning the end of Jerusalem, but Peter and John, as having greater freedom of speech.

They ask Him three things. First, The time of the destruction of Jerusalem, saying, Tell us when shall these things be? Secondly, The time of Christ's coming, saying, And what shall be the sign of Thy coming? Thirdly, The time of the consummation of this world, saying, And of the end of the world?

The Lord continuing His walk arrives at Mount Olivet, having by the way foretold the destruction of the temple to those disciples who had shown and commended the buildings. When they had reached the Mount they came to Him, asking Him further of this. For Mount Olivet has no unfruitful trees, but olives, which supply light to dispel darkness, which give rest to the weary, health to the sick. And sitting on Mount Olivet over against the temple, the Lord discourses of its destruction, and the destruction of the Jewish nation, that even by His choice of a situation He might show, that abiding still in the Church He condemns the pride of the wicked.