6 See, I pray you, how great a dignity Jesus bestows on you. You were called a Catechumen, while the word echoed round you from without; hearing of hope, and knowing it not; hearing mysteries, and not understanding them; hearing Scriptures, and not knowing their depth. The echo is no longer around you, but within you; for the indwelling Spirit henceforth makes your mind a house of God. When you shall have heard what is written concerning the mysteries, then will you understand things which thou knew not.
And think not that you receive a small thing: though a miserable man, you receive one of God's titles. Hear St. Paul saying, God is faithful . Hear another Scripture saying, God is faithful and just . Foreseeing this, the Psalmist, because men are to receive a title of God, spoke thus in the person of God: I said, You are Gods, and are all sons of the Most High. But beware lest thou have the title of faithful, but the will of the faithless.
You have entered into a contest, toil on through the race: another such opportunity you cannot have. Were it your wedding day before you, would you not have disregarded all else, and set about the preparation for the feast? And on the eve of consecrating your soul to the heavenly Bridegroom, will you not cease from carnal things, that you may win spiritual?
Source: Catechetical Lectures (New Advent)