Jesus' mission after death

John 14:1 Let not your heart be troubled: ye believe in God, believe also in me. 2 In my Father's house are many mansions: if it were not so, I would have told you. I go to prepare a place for you. 3 And if I go and prepare a place for you, I will come again, and receive you unto myself; that where I am, there ye may be also. 4 And whither I go ye know, and the way ye know.

John 14:5 Thomas saith unto him, Lord, we know not whither thou goest; and how can we know the way?

John 14:6 Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.

The transition to these speeches appears after the supper at the mount of olives where it introduces the prophecy of Peter's betrayal.