4 Bible Verses about Incredulity

And Thomas, one of the twelve, who is called Didymus, was not with them when Jesus came;

lo, I am placing the fleece of wool in the threshing-floor: if dew is on the fleece alone, and on all the earth drought -- then I have known that Thou dost save Israel by my hand, as Thou hast spoken;' and it is so, and he riseth early on the morrow, and presseth the fleece, and wringeth dew out of the fleece -- the fulness of the bowl, of water. And Gideon saith unto God, 'Let not Thine anger burn against me, and I speak only this time; let me try, I pray Thee, only this time with the fleece -- let there be, I pray Thee, drought on the fleece alone, and on all the earth let there be dew.'read more.
And God doth so on that night, and there is drought on the fleece alone, and on all the earth there hath been dew.

They bring him to the Pharisees who once was blind, and it was a sabbath when Jesus made the clay, and opened his eyes. Again, therefore, the Pharisees also were asking him how he received sight, and he said to them, 'Clay he did put upon my eyes, and I did wash -- and I see.'read more.
Of the Pharisees, therefore, certain said, 'This man is not from God, because the sabbath he doth not keep;' others said, 'How is a man -- a sinful one -- able to do such signs?' and there was a division among them. They said to the blind man again, 'Thou -- what dost thou say of him -- that he opened thine eyes?' and he said -- 'He is a prophet.' The Jews, therefore, did not believe concerning him that he was blind and did receive sight, till that they called the parents of him who received sight, and they asked them, saying, 'Is your son, of whom ye say that he was born blind? how then now doth he see?' His parents answered them and said, 'We have known that this is our son, and that he was born blind; and how he now seeth, we have not known; or who opened his eyes, we have not known; himself is of age, ask him; he himself shall speak concerning himself.' These things said his parents, because they were afraid of the Jews, for already had the Jews agreed together, that if any one may confess him -- Christ, he may be put out of the synagogue; because of this his parents said -- 'He is of age, ask him.' They called, therefore, a second time the man who was blind, and they said to him, 'Give glory to God, we have known that this man is a sinner;' he answered, therefore, and said, 'If he be a sinner -- I have not known, one thing I have known, that, being blind, now I see.' And they said to him again, 'What did he to thee? how did he open thine eyes?' He answered them, 'I told you already, and ye did not hear; why again do ye wish to hear? do ye also wish to become his disciples?' They reviled him, therefore, and said, 'Thou art his disciple, and we are Moses' disciples; we have known that God hath spoken to Moses, but this one -- we have not known whence he is.' The man answered and said to them, 'Why, in this is a wonderful thing, that ye have not known whence he is, and he opened my eyes! and we have known that God doth not hear sinners, but, if any one may be a worshipper of God, and may do His will, him He doth hear; from the age it was not heard, that any one did open eyes of one who hath been born blind; if this one were not from God, he were not able to do anything.' They answered and said to him, 'In sins thou wast born altogether, and thou dost teach us!' and they cast him forth without. Jesus heard that they cast him forth without, and having found him, he said to him, 'Dost thou believe in the Son of God?' he answered and said, 'Who is he, sir, that I may believe in him?' And Jesus said to him, 'Thou hast both seen him, and he who is speaking with thee is he;' and he said, 'I believe, sir,' and bowed before him. And Jesus said, 'For judgment I to this world did come, that those not seeing may see, and those seeing may become blind.' And those of the Pharisees who were with him heard these things, and they said to him, 'Are we also blind?' Jesus said to them, 'If ye were blind, ye were not having had sin, but now ye say -- We see, therefore doth your sin remain.

and we think it good from thee to hear what thou dost think, for, indeed, concerning this sect it is known to us that everywhere it is spoken against;' and having appointed him a day, they came, more of them unto him, to the lodging, to whom he was expounding, testifying fully the reign of God, persuading them also of the things concerning Jesus, both from the law of Moses, and the prophets, from morning till evening, and, some, indeed, were believing the things spoken, and some were not believing.read more.
And not being agreed with one another, they were going away, Paul having spoken one word -- 'Well did the Holy Spirit speak through Isaiah the prophet unto our fathers, saying, Go on unto this people and say, With hearing ye shall hear, and ye shall not understand, and seeing ye shall see, and ye shall not perceive, for made gross was the heart of this people, and with the ears they heard heavily, and their eyes they did close, lest they may see with the eyes, and with the heart may understand, and be turned back, and I may heal them. 'Be it known, therefore, to you, that to the nations was sent the salvation of God, these also will hear it;' and he having said these things, the Jews went away, having much disputation among themselves;