John, Chapter 14: verse 1 to 6 and verse 27
“Do not let your hearts be troubled. Trust in God; trust also in me. In my Father's house are many rooms; if it were not so, I would have told you.
I am going there to prepare a place for you. And if I go and prepare a place for you, I will come back and take you to be with me that you also may be where I am. You know the way to the place where I am going.”
Thomas said to him, “Lord, we don't know where you are going, so how can we know the way?” Jesus answered, “I am the way and the truth and the life. No one comes to the Father except through me.”
“Peace I leave with you; my peace I give you. I do not give to you as the world gives. Do not let your hearts be troubled and do not be afraid.”