3 Bible Verses about Incredulity

But Thomas, one of the Twelve, who was called "The Twin." was not with them when Jesus came.

Then they brought the man who had been blind to the Pharisees. Now it was on the Sabbath that Jesus had made clay and opened his eyes; so the Pharisees again began to ask him questions about how he had regained his sight; and he said to them, "He put clay on my eyes, and I washed them, and now I see."read more.
Then some of the Pharisees began to say, "This man in not from God, because he does not keep the Sabbath." But others said, "How can a man who is a sinner perform such signs?" So there was a difference of opinion among them. Accordingly they said to the blind man, "What have you to say about him, now that he has opened your eyes?" "He is a prophet," he answered. The Jews, however, did not believe about him that he was blind and had received his sight, until they called the parents of the man whose sight had been restored, and questioned them. "Is this your son," they said, "who you say was born blind? How then does he now see?" Then in reply his parents said: "We know that this is our son, and that he was born blind; "but how he now sees we do not know, nor do we know who has opened his eyes. Ask him, himself. He is of age. He will speak for himself." This his parents said because they were afraid of the Jews, for the Jews had already agreed that if any one should confess that he was the Christ, he should be expelled from the synagogue. It was because this that his parents said: "He is of age. Ask him, himself." So the Jews a second time summoned the man who had been blind, and said to him. "Give glory to God! we know that this man is a sinner." Upon this the blind man answered. "I do not know if he is a sinner. One thing I do know, that once I was blind, and know I can see." "What was it he did to you?" they asked him; "How did he open your eyes?" He answered. "I have told you already, and you did not listen. Why do you wish to hear it again? Can it be that you, too, wish to become his disciples?" Then they stormed at him. "You are his disciple. We are Moses' disciples. "We know that God spoke to Moses. But this fellow! We do not know where he comes from." "This is truly astonishing," said the man in reply, "that you do not know where he is from, and yet he has opened my eyes. "We know that God does not listen to sinners, but if any one is God-fearing and does his will, to such he listens. "Since the beginning of the world such a thing as opening the eyes of one who was born blind was never heard of. "If this man had not come of God he could have done nothing." They answered, "You were wholly born in sins, and do you teach us?" Then they cast him out. Jesus heard that they had cast him out; and when he had found him, he said, "Do you believe in the Son of man?" "Who is he, Sir," he replied, "that I may believe on him." "You have already seen him," Jesus answered, "and it is he who now speaks to you." "I do believe, Sir," said the man, and he prostrated himself at his feet. And Jesus said, "For judgment am I come into the world, to make the sightless see, and to make the seeing blind." Some of the Pharisees who were with him heard this and asked, "We are not blind, are we?" "If you were blind," Jesus answered them, "you would have no sin. But now you are declaring, 'We see'; so your sin remains.

"But we are eager to hear from you what it is that you believe; for we all know that as for this sect it is everywhere spoken against." So they arranged a day with him and came to him in his lodgings in great numbers. He expounded the matter to them; testifying to the Kingdom of God, and persuading them about Jesus, from morning till evening, both from the Law of Moses and from the Prophets. Some began to believe what he said, but some were unbelieving.read more.
Unable to agree among themselves, they began to go, but not before Paul had spoken a word to them, saying. "Right well did the Holy Spirit say to your ancestors, through the prophet Isaiah. "Go to the people and tell them, You will hear and hear, and by no means understand; And will look, and by no means see. For this people's heart is grown obtuse, Their ears are heavy of hearing, Their eyes have they closed, Lest they should see with their eyes And hear with their ears, Lest they understand with their heart, And turn again, and heal them. "Be fully assured, therefore, that this salvation of God is now sent unto the Gentiles. They will listen to it." When he finished speaking, the Jews departed, and reasoned among themselves.