Isn’t it a bit weird that Catholics call the Pope “papa,” father? This Sunday provides us with essential Scriptural background on the papacy, the petrine office. Jesus gives Peter the “keys to the kingdom of heaven,” after witnessing to the special grace Peter has to know Jesus’ true identity. Many have pointed out that the “keys” refer back to the figure of Eliakim, King David’s prime minister. True enough.

The suffering of a child symbolizes uniquely terrible evil as well as despair about the future. This week’s Gospel gives a “limit” case in which Jesus encounters this evil in the form of a mother with a suffering daughter. What he does is stunning and massively helpful for us if we bravely ponder the details.

A man at my parish was struggling to overcome a habitual sin. He said to me, “Father, I know the chance that I will commit sin again is really high. Why should I keep confessing my sins? Isn’t that dishonest?” Anyone who has felt the tyrannical power of sin — and who hasn’t? — has pondered this kind of question.

What is Christianity finally about? These days if you ask almost anyone who doesn’t know the Bible you’ll probably hear an answer like this: “Being a good person” or “following the golden rule.”

No offense to the golden rule, but our faith is simply much stranger than that. This week’s feast of the Transfiguration of the Lord is a luminous example of this. Jesus becomes radiantly and overwhelmingly beautiful. The glory of God literally shines forth from his body and even his clothes.