Matthew 6:21

(Verse 21) For where your treasure is, there your heart will be also. This applies not only to money, but also to all passions and possessions. The stomach is the god of gluttons: there it has its heart, where its treasure is. The treasure of the luxurious is feasts. For the lascivious, it is playfulness; for the lover, it is desire. Everyone serves the one by whom he is conquered (2 Peter 2:19).

The mind compasses the whole man about, and whither it wills it carries him. But where thy heart shall be, there shall be thy treasure. Be there our heart, then, where we would have our treasure.

There are some widows which esteem gain their business; and since they ask without shame, and receive without being satisfied, render the generality more backward in giving. For when they ought to be content with their subsistence from the Church, as having moderate desires, on the contrary, they run from one of their neighbours' houses to another, and disturb them, heaping up to themselves plenty of money, and lend at bitter usury, and are only solicitous about mammon, whose bag is their god; who prefer eating and drinking before all virtue, saying, "Let us eat and drink, for to-morrow we die;" who esteem these things as if they were durable and not perishing things. For she that uses herself to nothing but talking of money, worships mammon instead of God,-that is, is a servant to gain, but cannot be pleasing to God, nor resigned to His worship; not being able to intercede with Him continuously on account that her mind and disposition run after money: for "where the treasure is, there will the heart be also." For she is thinking in her mind whither she may go to receive, or that a certain woman her friend has forgot her, and she has somewhat to say to her. She that thinks of such things as these will no longer attend to her prayers, but to that thought which offers itself; so that though sometimes she would pray for anybody, she will not be heard, because she does not offer her petition to the Lord with her whole heart, but with a divided mind.

He now teaches the benefit of almsgiving. He who places his treasure on earth has nothing to look for in Heaven; for why should he look up to Heaven where he has nothing laid up for himself? Thus he doubly sins; first, because he gathers together things evil; secondly, because he has his heart in earth; and so on the contrary he does right in a twofold manner who lays up his treasure in Heaven.

On this account then He adds another argument, which I have already mentioned, saying, "Where the man's treasure is, there is his heart also." For though none of these things should come to pass, saith He, thou wilt undergo no small harm, in being nailed to the things below, and in becoming a slave instead of a freeman, and casting thyself out of the heavenly things, and having no power to think on aught that is high, but all about money, usuries and loans, and gains, and ignoble traffickings. Than this what could be more wretched? For in truth such an one will be worse off than any slave, bringing upon himself a most grievous tyranny, and giving up the chiefest thing of all, even the nobleness and the liberty of man. For how much soever any one may discourse unto thee, thou wilt not be able to hear any of those things which concern thee, whilst thy mind is nailed down to money; but bound like a dog to a tomb, by the tyranny of riches, more grievously than by any chain, barking at all that come near thee, thou hast this one employment continually, to keep for others what thou hast laid up. Than this what can be more wretched? However, forasmuch as this was too high for the mind of His hearers, and neither was the mischief within easy view of the generality, nor the gain evident, but there was need of a spirit of more self-command to perceive either of these; first, He hath put it after those other topics, which are obvious, saying, "Where the man's treasure is, there is his heart also;" and next He makes it clear again, by withdrawing His discourse from the intellectual to the sensible.