1 Six days later, three of them saw that glory. Jesus took Peter and the brothers, James and John, and led them up a high mountain. His appearance changed from the inside out, right before their eyes. Sunlight poured from his face. His clothes were filled with light. Then they realized that Moses and Elijah were also there in deep conversation with him. 4 Peter broke in, "Master, this is a great moment! What would you think if I built three memorials here on the mountain - one for you, one for Moses, one for Elijah?" 5 While he was going on like this, babbling, a light-radiant cloud enveloped them, and sounding from deep in the cloud a voice: "This is my Son, marked by my love, focus of my delight. Listen to him." 6 When the disciples heard it, they fell flat on their faces, scared to death. But Jesus came over and touched them. "Don't be afraid." When they opened their eyes and looked around all they saw was Jesus, only Jesus.
9 Coming down the mountain, Jesus swore them to secrecy. "Don't breathe a word of what you've seen. After the Son of Man is raised from the dead, you are free to talk." 10 The disciples, meanwhile, were asking questions. "Why do the religion scholars say that Elijah has to come first?" 11 Jesus answered, "Elijah does come and get everything ready. I'm telling you, Elijah has already come but they didn't know him when they saw him. They treated him like dirt, the same way they are about to treat the Son of Man." That's when the disciples realized that all along he had been talking about John the Baptizer.