And again, “Behold the birds of the heaven, that they sow not, neither do they reap, nor gather into barns; and your heavenly Father feeds them.” No one can readily point us out any one who has perished by hunger and cold. Wherefore then do you tremble at poverty? You can not say. For if you have necessaries enough, wherefore do you tremble at it? Because you have not a multitude of servants? This truly is to be quit of masters; this is continual happiness, this is freedom from care. Is it because your vessels, your couches, your furniture are not formed of silver? And what greater enjoyment than yours has he who possesses these things? None at all. The use is the same, whether they are of this or that material. Is it because you are not an object of fear to the many? May you never become so! For what pleasure is it that any should stand in dread and fear of you? Is it because you are afraid of others? But you can not be alarmed. For “would you have no fear of the power? Do that which is good, and you shall have praise from the same.” Does any say, It is because we are subject to contempt, and apt to suffer ill? It is not poverty but wickedness which causes this; for many poor men have quietly passed through life, while rulers, and the rich, and powerful, have ended their days more wretchedly than all evil doers, than bandits, than grave-robbers. For what poverty brings in your case, that does wealth in theirs. For that which they who would ill-treat you do through your contemptible estate, they do to him from envy and the evil eye they cast upon him, and the latter still more than the former, for this is the stronger craving to ill-treat another. He who envies does everything with all his might and main, while the despiser ofttimes has even pity on the despised; and his very poverty, and utter want of power, has often been the cause of his deliverance.
And sometimes by saying to him, “A great deed it will be if you make away with such an one! If you slay one poor man, what vast advantage will you reap?” we may thus soften down his anger. But envy sets itself against the rich, and ceases not until it has wrought its will, and has poured forth its venom. See you, neither poverty nor wealth is good in itself, but our own disposition. Let us bring it to a good tone, let us discipline it in true wisdom. If this be well affected, riches cannot cast us out of the kingdom, poverty will not make us come short. But we shall meekly bear our poverty, and receive no loss in respect to the enjoyment of future goods, nor even here on earth. But we shall both enjoy what is good on earth, and obtain the good things in heaven, which may we all obtain, through the grace and lovingkindness, etc.
Source: Homilies on Philippians (New Advent)