37 I know, O Lord God Almighty, that I owe You, as the chief duty of my life, the devotion of all my words and thoughts to Yourself. The gift of speech which You have bestowed can bring me no higher reward than the opportunity of service in preaching You and displaying You as You are, as Father and Father of God the Only-begotten, to the world in its blindness and the heretic in his rebellion. But this is the mere expression of my own desire; I must pray also for the gift of Your help and compassion, that the breath of Your Spirit may fill the sails of faith and confession which I have spread, and a favouring wind be sent to forward me on my voyage of instruction.
We can trust the promise of Him Who said, Ask, and it shall be given you, seek, and you shall find, knock, and it shall be opened unto you; and we in our want shall pray for the things we need. We shall bring an untiring energy to the study of Your Prophets and Apostles, and we shall knock for entrance at every gate of hidden knowledge, but it is Yours to answer the prayer, to grant the thing we seek, to open the door on which we beat. Our minds are born with dull and clouded vision, our feeble intellect is penned within the barriers of an impassable ignorance concerning things Divine; but the study of Your revelation elevates our soul to the comprehension of sacred truth, and submission to the faith is the path to a certainty beyond the reach of unassisted reason.
Source: On the Trinity (New Advent)