36While they were still talking about this, Jesus himself stood among them and said to them, "Peace be with you." 37They were startled and frightened, thinking they saw a ghost. 38He said to them, "Why are you troubled, and why do doubts rise in your minds? 39Look at my hands and my feet. It is I myself! Touch me and see; a ghost does not have flesh and bones, as you see I have." 40When he had said this, he showed them his hands and feet. 41And while they still did not believe it because of joy and amazement, he asked them, "Do you have anything here to eat?" 42They gave him a piece of broiled fish, 43and he took it and ate it in their presence. 44He said to them, "This is what I told you while I was still with you: Everything must be fulfilled that is written about me in the Law of Moses, the Prophets and the Psalms." 45Then he opened their minds so they could understand the Scriptures. 46He told them, "This is what is written: The Christ will suffer and rise from the dead on the third day, 47and repentance and forgiveness of sins will be preached in his name to all nations, beginning at Jerusalem. 48You are witnesses of these things. 49I am going to send you what my Father has promised; but stay in the city until you have been clothed with power from on high."
about being sceptical
35Then Jesus declared, "I am the bread of life. He who comes to me will never go hungry, and he who believes in me will never be thirsty. 36But as I told you, you have seen me and still you do not believe. 37All that the Father gives me will come to me, and whoever comes to me I will never drive away. 38For I have come down from heaven not to do my will but to do the will of him who sent me. 39And this is the will of him who sent me, that I shall lose none of all that he has given me, but raise them up at the last day. 40For my Father's will is that everyone who looks to the Son and believes in him shall have eternal life, and I will raise him up at the last day."
25Jesus answered, "I did tell you, but you do not believe. The miracles I do in my Father's name speak for me, 26but you do not believe because you are not my sheep. 27My sheep listen to my voice; I know them, and they follow me. 28I give them eternal life, and they shall never perish; no one can snatch them out of my hand. 29My Father, who has given them to me, is greater than all; no one can snatch them out of my Father's hand. 30I and the Father are one."