The oft quotable F.D. Bruner interacting with Matthew 6:19-21 in Matthew: A Commentary. Volume 1: The Christbook, Matthew 1-12
writes (page 321):
Jesus does not quash ambition; he elevates it. The Christian is to be ambitious, passionate, acquisitive, enterprising — for the Father’s approval, for the “well done” of God’s Final Judgment. Thus Jesus’ ethic is not so much ascetic as athletic.
Also:
The moth is nature’s corrosion eating away, the rust time’s corrosions, and the thief humanity’s corrosions — and all three together represent the insecurity of life lived for accumulation.
