Did Jesus really do miracles?

Mark 2:1–12

¹And again he entered into Capernaum after some days; and it was noised that he was in the house. ²And straightway many were gathered together, insomuch that there was no room to receive them, no, not so much as about the door: and he preached the word unto them. ³And they come unto him, bringing one sick of the palsy, which was borne of four. ⁴And when they could not come nigh unto him for the press, they uncovered the roof where he was: and when they had broken it up, they let down the bed wherein the sick of the palsy lay. ⁵When Jesus saw their faith, he said unto the sick of the palsy, Son, thy sins be forgiven thee. ⁶But there were certain of the scribes sitting there, and reasoning in their hearts, ⁷Why doth this man thus speak blasphemies? who can forgive sins but God only? ⁸And immediately when Jesus perceived in his spirit that they so reasoned within themselves, he said unto them, Why reason ye these things in your hearts? ⁹Whether is it easier to say to the sick of the palsy, Thy sins be forgiven thee; or to say, Arise, and take up thy bed, and walk? ¹⁰But that ye may know that the Son of man hath power on earth to forgive sins, (he saith to the sick of the palsy,) ¹¹I say unto thee, Arise, and take up thy bed, and go thy way into thine house. ¹²And immediately he arose, took up the bed, and went forth before them all; insomuch that they were all amazed, and glorified God, saying, We never saw it on this fashion.

John 9:1–41

¹And as Jesus passed by, he saw a man which was blind from his birth. ²And his disciples asked him, saying, Master, who did sin, this man, or his parents, that he was born blind? ³Jesus answered, Neither hath this man sinned, nor his parents: but that the works of God should be made manifest in him. ⁴I must work the works of him that sent me, while it is day: the night cometh, when no man can work. ⁵As long as I am in the world, I am the light of the world. ⁶When he had thus spoken, he spat on the ground, and made clay of the spittle, and he anointed the eyes of the blind man with the clay, ⁷And said unto him, Go, wash in the pool of Siloam, (which is by interpretation, Sent.) He went his way therefore, and washed, and came seeing. ⁸The neighbours therefore, and they which before had seen him that he was blind, said, Is not this he that sat and begged? ⁹Some said, This is he: others said, He is like him: but he said, I am he. ¹⁰Therefore said they unto him, How were thine eyes opened? ¹¹He answered and said, A man that is called Jesus made clay, and anointed mine eyes, and said unto me, Go to the pool of Siloam, and wash: and I went and washed, and I received sight. ¹²Then said they unto him, Where is he? He said, I know not. ¹³They brought to the Pharisees him that aforetime was blind. ¹⁴And it was the sabbath day when Jesus made the clay, and opened his eyes. ¹⁵Then again the Pharisees also asked him how he had received his sight. He said unto them, He put clay upon mine eyes, and I washed, and do see. ¹⁶Therefore said some of the Pharisees, This man is not of God, because he keepeth not the sabbath day. Others said, How can a man that is a sinner do such miracles? And there was a division among them. ¹⁷They say unto the blind man again, What sayest thou of him, that he hath opened thine eyes? He said, He is a prophet. ¹⁸But the Jews did not believe concerning him, that he had been blind, and received his sight, until they called the parents of him that had received his sight. ¹⁹And they asked them, saying, Is this your son, who ye say was born blind? how then doth he now see? ²⁰His parents answered them and said, We know that this is our son, and that he was born blind: ²¹But by what means he now seeth, we know not; or who hath opened his eyes, we know not: he is of age; ask him: he shall speak for himself. ²²These words spake his parents, because they feared the Jews: for the Jews had agreed already, that if any man did confess that he was Christ, he should be put out of the synagogue. ²³Therefore said his parents, He is of age; ask him. ²⁴Then again called they the man that was blind, and said unto him, Give God the praise: we know that this man is a sinner. ²⁵He answered and said, Whether he be a sinner or no, I know not: one thing I know, that, whereas I was blind, now I see. ²⁶Then said they to him again, What did he to thee? how opened he thine eyes? ²⁷He answered them, I have told you already, and ye did not hear: wherefore would ye hear it again? will ye also be his disciples? ²⁸Then they reviled him, and said, Thou art his disciple; but we are Moses’ disciples. ²⁹We know that God spake unto Moses: as for this fellow, we know not from whence he is. ³⁰The man answered and said unto them, Why herein is a marvellous thing, that ye know not from whence he is, and yet he hath opened mine eyes. ³¹Now we know that God heareth not sinners: but if any man be a worshipper of God, and doeth his will, him he heareth. ³²Since the world began was it not heard that any man opened the eyes of one that was born blind. ³³If this man were not of God, he could do nothing. ³⁴They answered and said unto him, Thou wast altogether born in sins, and dost thou teach us? And they cast him out. ³⁵Jesus heard that they had cast him out; and when he had found him, he said unto him, Dost thou believe on the Son of God? ³⁶He answered and said, Who is he, Lord, that I might believe on him? ³⁷And Jesus said unto him, Thou hast both seen him, and it is he that talketh with thee. ³⁸And he said, Lord, I believe. And he worshipped him. ³⁹And Jesus said, For judgment I am come into this world, that they which see not might see; and that they which see might be made blind. ⁴⁰And some of the Pharisees which were with him heard these words, and said unto him, Are we blind also?

Matthew 11:2–6

²Now when John had heard in the prison the works of Christ, he sent two of his disciples, ³And said unto him, Art thou he that should come, or do we look for another? ⁴Jesus answered and said unto them, Go and shew John again those things which ye do hear and see: ⁵The blind receive their sight, and the lame walk, the lepers are cleansed, and the deaf hear, the dead are raised up, and the poor have the gospel preached to them. ⁶And blessed is he, whosoever shall not be offended in me.

John 20:30–31

³⁰And many other signs truly did Jesus in the presence of his disciples, which are not written in this book: ³¹But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.