10 And while they looked stedfastly toward heaven as he went up, behold, two men stood by them in white apparel; 11 Which also said, Ye men of Galilee, why stand ye gazing up into heaven? this same Jesus, which is taken up from you into heaven, shall so come in like manner as ye have seen him go into heaven. (Acts 1:10-11 KJV)
William Burkitt’s Commentary
Observe here, How the spectators of our Lord’s ascension were justly transported into an extacy of wonder and admiration. Christ ascended gradually and leisurely, that he might at once confirm the faith, and delight the eyes and minds of his beholders. Whilst they thus stood admiring, two angels, in the shape of men, appear in white, (a colour which they oft appeared in, to shew both that they retained their native purity, and also to represent the joyfulness of their errand which they went upon) and call to the apostles, who were some of them men of Galilee, to take notice that this Jesus whom they now beheld ascending up into heaven, should come again to judge the world, and so come again in like manner, that is, visible, in a cloud, by his own power, with the like majesty, and with the same soul and body. But not one word of the time when; that, not knowing the hour, we may be upon our watch every hour; Ideo latet unus dies ut observentur onmes.