On their way to the other side of the lake, the disciples discovered they had forgotten to bring along bread. In the meantime, Jesus said to them, “Keep a sharp eye out for Pharisee-Sadducee yeast.”
Thinking he was scolding them for forgetting bread, they discussed in whispers what to do. Jesus knew what they were doing and said, “Why all these worried whispers about forgetting the bread? Baby believers! Haven’t you caught on yet? Don’t you remember the five loaves of bread and the five thousand people, and how many baskets of fragments you picked up? Or the seven loaves that fed four thousand, and how many baskets of leftovers you collected? Haven’t you realized yet that bread isn’t the problem? The problem is yeast, Pharisee-Sadducee yeast.” Then they got it: that he wasn’t concerned about eating, but teaching—the Pharisee-Sadducee kind of teaching.
When Jesus arrived in the villages of Caesarea Philippi, he asked his disciples, “What are people saying about who the Son of Man is?”
They replied, “Some think he is John the Baptizer, some say Elijah, some Jeremiah or one of the other prophets.”
He pressed them, “And how about you? Who do you say I am?”
Simon Peter said, “You’re the Christ, the Messiah, the Son of the living God.”
Jesus came back, “God bless you, Simon, son of Jonah! You didn’t get that answer out of books or from teachers. My Father in heaven, God himself, let you in on this secret of who I really am. And now I’m going to tell you who you are, really are. You are Peter, a rock. This is the rock on which I will put together my church, a church so expansive with energy that not even the gates of hell will be able to keep it out.
“And that’s not all. You will have complete and free access to God’s kingdom, keys to open any and every door: no more barriers between heaven and earth, earth and heaven. A yes on earth is yes in heaven. A no on earth is no in heaven.”