Mark 9:8-10

New Revised Standard Version Catholic Edition

⁸ Suddenly when they looked around, they saw no one with them any more, but only Jesus.

The Coming of Elijah

⁹ As they were coming down the mountain, he ordered them to tell no one about what they had seen, until after the Son of Man had risen from the dead. ¹⁰ So they kept the matter to themselves, questioning what this rising from the dead could mean.