24 The course of instruction in the Faith would lead me to speak of the Ascension also; but the grace of God so ordered it, that you heard most fully concerning it, as far as our weakness allowed, yesterday, on the Lord's day; since, by the providence of divine grace, the course of the Lessons in Church included the account of our Saviour's going up into the heavens; and what was then said was spoken principally for the sake of all, and for the assembled body of the faithful, yet especially for your sake. But the question is, did you attend to what was said?
For you know that the words which come next in the Creed teach you to believe in Him “Who rose again the third day, and ascended into Heaven, and sat down on the right hand of the Father.” I suppose then certainly that you remember the exposition; yet I will now again cursorily put you in mind of what was then said. Remember what is distinctly written in the Psalms, God is gone up with a shout; remember that the divine powers also said to one another, Lift up your gates, you Princes, and the rest; remember also the Psalm which says, He ascended on high, He led captivity captive; remember the Prophet who said, Who builds His ascension unto heaven; and all the other particulars mentioned yesterday because of the gainsaying of the Jews.
Source: Catechetical Lectures (New Advent)