Verses 11 and 12 of John 17.

Now I am departing from the world; they are staying in this world, but I am coming to you. Holy Father, you have given me your name; now protect them by the power of your name so that they will be united just as we are. During my time here, I protected them by the power of the name you gave me. I guarded them so that not one was lost, except the one headed for destruction, as the Scriptures foretold.