Parshah Re'eh - Deuteronomy 11:26-16:17

Turnusrufus asked Rabbi Akiva: "If your G-d loves the poor, why doesn't He feed them?"

Said [Rabbi Akiva] to him: "So that we should be saved from purgatory (in the merit of the charity we give)."

Said he to him: "On the contrary: for this you deserve to be punished. I'll give you an analogy: A king got angry at his slave and locked him away in a dungeon, and commanded that he not be given to eat or to drink; and a person came along and fed the slave. When the king hears of this, is he not angry at that person...?"

Said Rabbi Akiva to him: "I'll give you an analogy: A king got angry at his child and locked him away in a dungeon, and commanded that he not be given to eat or to drink; and a person fed the king's child. When the king hears of this, does he not reward that person...?

(Talmud, Bava Batra 10a)