Matthew 6:20

But the praise of Heaven is eternal, and cannot be carried off by invading thief, nor consumed by the moth and rust of envy.

For the present He signifies the hurtfulness of the treasure here, and the profit of what is there, both from the place, and from the things which mar it. And first, what things they most fear, from these He urges them. For "of what art thou afraid?" saith He: "lest thy goods should be spent, if thou give alms? Nay, then give alms, and so they will not be spent; and, what is more, so far from being spent, they will actually receive a greater increase; yea, for the things in heaven are added unto them." However, for a time He saith it not, but puts it afterwards. But for the present, what had most power to persuade them, that He brings forward, namely, that the treasure would thus remain for them unspent. And on either hand He attracts them. For He said not only, "If thou give alms, it is preserved:" but He threatened also the opposite thing, that if thou give not, it perishes. And see His unspeakable prudence. For neither did He say, "Thou dost but leave them to others;" since this too is pleasant to men: He alarms them however on a new ground, by signifying that not even this do they obtain: since though men defraud not, there are those which are sure to defraud, "the moth" and "the rust." For although this mischief seem very easy to restrain, it is nevertheless irresistible and uncontrollable, and devise what thou wilt, thou wilt be unable to check this harm. "What then, doth moth make away with the gold?" Though not moth, yet thieves do. "What then, have all been despoiled?" Though not all, yet the more part.

Seest thou how by those very things, through which most especially men everywhere affect wickedness, even by these most of all He deters them from it, and brings them back to virtue? "For with what intent dost thou desire riches?" saith He; "is it not that thou mayest enjoy pleasure and luxury? Why now, this above all things thou wilt fail to obtain thereby, it will rather be just contrary." For if, when our eyes are stricken out, we perceive not any pleasant thing, because of such our calamity; much more will this be our case in the perversion and maiming of the mind. Again, with what intent dost thou bury it in the earth? That it may be kept in safety? But here too again it is the contrary, saith He. And thus, as in dealing with him that for vainglory fasts and gives alms and prays, by those very things which he most desires He had allured him not to be vainglorious:-"for with what intent," saith He, "dost thou so pray and give alms? for love of the glory that may be had from men? then do not pray thus," saith He, "and so thou shalt obtain it in the day that is to come:"-so He hath taken captive the covetous man also, by those things for which he was most earnest. Thus: "what wouldest thou?" saith He, "to have thy wealth preserved, and to enjoy pleasure? Both these things I will afford thee in great abundance, if thou lay up thy gold in that place, where I bid thee." It is true that hereafter He displayed more clearly the evil effect of this on the mind, I mean, when He made mention of the thorns; but for the present, even here He hath strikingly intimated the same, by representing him as darkened who is beside himself in this way.

By heaven in this place I understand not the material heavens, for every thing that has a body is earthly. But it behoves that the whole world be despised by him who lays up his treasure in that Heaven, of which it is said, The heaven of heavens is the Lord's, (Ps. 115:16.) that is, in the spiritual firmament. For heaven and earth shall pass away; (Mat. 24:35.) but we ought not to place our treasure in that which passes away, but in that which abides for ever.

Which then is better? To place it on earth where its security is doubtful, or in Heaven where it will be certainly preserved? What folly to leave it in this place whence you must soon depart, and not to send it before you thither, whither you are to go? Therefore place your substance there where your country is.