But of the fear of the Lord this is what is written: ‘Come, my children, listen to me, I shall teach you the fear of the Lord.’ The fear of the Lord has then to be learned because it can be taught. It does not lie in terror, but in something that can be taught. It does not arise from the fearfulness of our nature; it has to be acquired by obedience to the commandments, by holiness of life and by knowledge of the truth.
–Saint Hilary of Poitiers (c. 300-368)