5 Nor may you excuse yourself on the score of your noble station and the responsibilities of wealth. Look at Pammachius and at Paulinus that presbyter of glowing faith both of whom have offered to the Lord not only their riches but themselves. In spite of the devil and his shuffling they have by no means given skin for skin, but have consecrated their own flesh and bones, yea and their very souls unto the Lord. Surely these may lead you to higher things both by their example and by their preaching, that is, by their deeds and words.
You are of noble birth, so are they: but in Christ they are made nobler still. You are rich and held in repute, so once were they: but now instead of being rich and held in repute they are poor and obscure, yet, because it is for Christ's sake, they are really richer and more famous than ever. You too, it is true, show yourself beneficent, you are said to minister to the wants of the saints, to entertain monks, and to present large sums of money to churches. This however is only the a b c of your soldiership.
You despise money; the world's philosophers have done the same. One of these — to say nothing of the rest— cast the price of many possessions into the sea, saying as he did so “To the bottom with you, you provokers of evil lusts. I shall drown you in the sea that you may never drown me in sin.” If then a philosopher— a creature of vanity whom popular applause can buy and sell— laid down all his burden at once, how can you think that you have reached virtue's crowning height when you have yielded up but a portion of yours?
It is you yourself that the Lord wishes for, “a living sacrifice...acceptable unto God.” Yourself, I say, and not what you have. And therefore, as he trained Israel by subjecting it to many plagues and afflictions, so does He now admonish you by sending you trials of different kinds. “For whom the Lord loves he chastens, and scourges every son whom he receives.” The poor widow did but cast two mites into the treasury; yet because she cast in all that she had it is said of her that she surpassed all the rich in offering gifts to God. Such gifts are valued not by their weight but by the good-will with which they are made.
You may have spent your substance upon numbers of people, and a portion of your fellows may have reason to rejoice in your bounty; yet those who have received nothing at your hands are still more numerous. Neither the wealth of Darius nor the riches of Crœsus would suffice to satisfy the wants of the world's poor. But if you once give yourself to the Lord and resolve to follow the Saviour in the perfection of apostolic virtue, then you will come to see what your place has hitherto been, and how you have lagged in the rear of Christ's army.
Hardly had you begun to mourn for your dead daughters when the fear of Christ dried the tears of paternal affection upon your cheeks. It was a great triumph of faith, true. But how much greater was that won by Abraham who was content to slay his only son, of whom he had been told that he was to inherit the world, yet did not cease to hope that after death Isaac would live again. Jephthah too offered up his virgin daughter, and for this is placed by the apostle in the roll of the saints. I would not therefore have you offer to the Lord only what a thief may steal from you or an enemy fall upon, or a proscription confiscate, what is liable to fluctuations in value now going up and now down, what belongs to a succession of masters who follow each other as fast as in the sea wave follows wave, and— to say everything in a word— what, whether you like it or not, you must leave behind you when you die.
Rather offer to God that which no enemy can carry off and no tyrant take from you, which will go down with you into the grave, nay on to the kingdom of heaven and the enchantments of paradise. You already build monasteries and support in the various islands of Dalmatia a large number of holy men. But you would do better still if you were to live among these holy men as a holy man yourself. “Be holy, says the Lord, for I am holy.” The apostles boasted that they had left all things and had followed the Saviour. We do not read that they left anything except their ship and their nets; yet they were crowned with the approval of Him who was to be their judge. Why? Because in offering up themselves they had indeed left all that they had.
Source: Letters (New Advent)