14 For from the moment we are born, we must needs be dying. This disease must needs bring us to death. This indeed physicians say when they examine their patients. For instance, “This man has the dropsy, he is dying; this disease cannot be cured. This man has the leprosy: this disease too cannot be cured. He is in a consumption. Who can cure this? He must needs die, he must perish.” See, the physician has now pronounced that he is in a consumption; that he cannot but die; and yet sometimes the dropsical patient does not die of his disease, and the leprous does not die of his, nor the consumptive patient of his; but now it is absolutely necessary that every one who is born should die of this.
He dies of it, he cannot do otherwise. This the physician and the unskilled both pronounce upon; and though he die somewhat more slowly, does he on that account not die? Where then is there true health, except where there is true immortality? But if it be true immortality, and no corruption, no wasting, what need will there be there of nourishment? Therefore, when you hear it said, “They shall sit down with Abraham, Isaac, and Jacob;” get not your body, but your soul in order. There shall you be filled; and this inner man has its proper food. In relation to it is it said, “Blessed are they which do hunger and thirst after righteousness, for they shall be filled.” And so truly filled shall they be that they shall hunger no more.
Source: Sermons on Selected Lessons of the New Testament (New Advent)