John 14:5-6.
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. If you really knew me, you would know my Father as well. From now on, you do know him and have seen him."
Here, not only Thomas, but also Philip and Judas who is not Iscariot (Thaddaeus) asked Jesus for his answer. John 14 to 17 is about Jesus' final teachings to his disciples. Just full of critical teachings. Among them I picked my favourite verse.