Deuteronomy 15:9
“Beware that there isn't a wicked thought in your heart, saying, "The seventh year, the year of release, is at hand;" and your eye be evil against your poor brother, and you give him nothing; and he cry to Yahweh against you, and it be sin to you.”
Deuteronomy is a collection of Moses' final speeches to the Israelites on the plains of Moab, just before they enter the promised land. In this section, Moses is outlining laws concerning the treatment of the poor and the practice of the Sabbatical year (every seventh year, debts were to be remitted and slaves set free).
What systems or assumptions in our modern society might subtly encourage a 'wicked thought' that hinders genuine generosity towards those in need?