9 “He that planted the ear, shall He not hear? Or He that made the eye, does He not consider?” “or He that instructs the nations, shall He not reprove?”. This is what God is at present doing: He is instructing the nations: for this reason he sent His word to man throughout the world: He sent it by Angels, by Patriarchs, by Prophets, by servants, through so many heralds going before the Judge. He sent also His own Word Himself, He sent His own Son in Person: He sent the servants of His Son, and in these very servants His own Son.
Throughout the world is everywhere preached the word of God. Where is it not said unto men, Abandon your former wickedness, and turn yourselves to right paths? He spares, that you may correct yourselves: He punished not yesterday, in order that today ye may live well. He teaches the heathen, shall He not therefore reprove? will He not hear those whom He teaches? will He not judge those to whom He has beforehand sent and sown lessons of warning? If you were in a school, would you receive a task, and not repeat it?
When therefore you receive it from your master, you are being taught: the Master gives your task into your hands, and shall He not exact it from you when you come to repeat it? Or when you have begun to repeat it, shall you not be in fear of stripes? At present then we are receiving our work: afterwards we are placed before the Master, that we may give up to Him all our past tasks, that is, that we may give an account of all those things which are now being bestowed upon us. Hear the Apostle's words: “We must all appear before the judgment-seat of Christ,” etc. “It is He that teaches man knowledge.” Does He not know, who makes you to know?
Source: The Enarrations, or Expositions, on the Psalms (New Advent)