For God, He said, gave us understanding, that we might chase away all ignorance, and have the right judgment of things, and that using this as a kind of weapon and light against all that is grievous or hurtful, we might remain in safety. But we betray the gift for the sake of things superfluous and useless.
-St. John Chrysostom, Homily 20 and 21 on Matthew 6, 4th Century


A brother, more thrifty than covetous, ... left behind him at his death a hundred pieces of money which he had earned by weaving linen. ... a council was held as to what should be done [with the money] ... However, Macarius, Pambo, Isidore and the rest of those called fathers, speaking by the Spirit, decided that they should be interred with their owner, with the words: "Thy money perish with thee."
-St. Jerome, Letter 22 to Eustochium

Unless the grace of God comes to the help of our frailty, to protect and defend it, no man can withstand the insidious onslaughts of the enemy nor can he damp down or hold in check the fevers which burn in our flesh with nature's fire.
-St. John Cassian, Conferences, Conference Two: On Discernment, Paulist Press pg. 74, 5th century


The truth is that people are frightened of being poor because they have no faith in Him who promised to provide all things needful to those who seek the kingdom of God (cf. Matt. 6:33). It is this fear that spurs them, even when they are endowed with all things, and it prevents them from ever freeing themselves from this sickly and baneful desire. They go on amassing wealth, loading themselves with a worthless burden or, rather, enclosing themselves while still living in a most absurd kind of tomb.
-St. Gregory Palamas, To the Most Reverend Nun Xenia no. 32, Philokalia Vol. 4 edited by Palmer, Sherrard and Ware; Faber and Faber pg. 305, 14th century