Matthew 6:19-24 TNIV
“Do not store up for yourselves treasures on earth, where moth and rust destroy, and where thieves break in and steal. But store up for yourselves treasures in heaven, where moth and rust do not destroy, and where thieves do not break in and steal. For where your treasure is, there your heart will be also.
“The eye is the lamp of the body. If your eyes are healthy, your whole body will be full of light. But if your eyes are unhealthy, your whole body will be full of darkness. If then the light within you is darkness, how great is that darkness!
“No one can serve two masters. Either you will hate the one and love the other, or you will be devoted to the one and despise the other. You cannot faithfully serve both God and Money. “
Treasures on earth, serving money. Too easily our eyes are distracted by such earthly things—the lusts of accumulation, the false security of amounts, the envy and jealousy of success and wealth. Why can we not serve both God and Money? Because God calls us, above all else, to Love, and nothing destroys Love like self-centered greed. Avarice makes friendship impossible.
Yes, nature from the beginning impressed in the human heart a desire for friendship and charity, a desire which an inner sense of love soon increased with a taste of sweetness. But after the Fall of the first humans, when with the cooling of charity lust made subversive inroads and the common good was subsumed under the private, the splendor of friendship and charity was corrupted through avarice and envy; contentions, ambitious rivalries, hatreds and suspicions were introduced because human morals had been corrupted.
—Aelred of Rievaulx (1110-1167) Spiritual Friendship 1.58