17 What luxuriousness then said in a perverted sense concerning the giving of alms, and procuring rest for our souls against the time to come, that so we may “do well to our souls,” Moses also and the Prophets have spoken. Let us give ear while we are alive. Because there he will desire in vain to hear, who has despised these words when he heard them here. Are we expecting that one should rise even from the dead, and tell us to do well to our own souls? It has been done already: your father has not risen again, but your Lord has risen. Hear Him, and accept good counsel. Spare not your treasures, spend as freely as you can. This was the voice of luxuriousness: it has become the Lord's Voice. Spend as freely as you can, do well to your soul, lest this night your soul be required. Here then you have in Christ's Name a discourse as I think on the duty of almsgiving. This your voice now applauding, is then only well-pleasing to the Lord, if He see withal your hands active in works of mercy.
Source: Sermons on Selected Lessons of the New Testament (New Advent)