Dearly beloved, today our Saviour is born; let us rejoice. Sadness should have no place on the birthday of life. The fear of death has been swallowed up; life brings us joy with the promise of eternal happiness. No one is shut out from this joy; all share the same reason for rejoicing. Our Lord, victor over sin and death, finding no man free from sin, came to free us all. Let the saint rejoice as he sees the palm of victory at hand. Let the sinner be glad as he receives the offer of forgiveness. Let the pagan take courage as he is summoned to life. In the fullness of time, chosen in the unfathomable depths of God’s wisdom, the Son of God took for himself our common humanity in order to reconcile it with its creator. He came to overthrow the devil, the origin of death, in that very nature by which he had overthrown mankind.
–Saint Leo the Great (c. 400-461)