It is Peter himself that He says, 'You are Peter, and upon this rock I will build my Church.' Where Peter is, there is the Church. And where the Church, no death is there, but life eternal.
Ambrose...Now since you are celebrating the holy Pascha, you should know, brethren, what the Pascha is. Pascha means the crossing-over, and so the Festival is called by this name. For it was on this day that the Children of Israel crossed over out of Egypt, and the Son of God crossed over from this world to His Father. What gain is it to celebrate unless you imitate Him Whom you worship; that is, unless you cross over from Egypt, that is, from the darkness of evildoing to the light of virtue, from the love of this world to the love of your heavenly home?
AmbroseGod drove Cain out of his presence and sent him into exile far away from his native land, so that he passed from a life of human kindness to one which was more akin to the rude existence of a wild beast.
AmbroseWhen I go to Rome, I fast on Saturday, but in Milan I do not. Do you also follow the custom of whatever church you attend, if you do not want to give or receive scandal.
AmbroseStephen prayed for his persecutors, who had not been able even to listen to the Name of Christ, when he said of those very men by whom he was being stoned: "Lord, lay not this sin to their charge" And we see the result of this prayer in the case of the Apostle, for Paul, who kept the garments of those who were stoning Stephen, not long after became an apostle by the grace of God, having before been a persecutor.
Ambrose