John 8:52-59, “At this the Jews exclaimed,‘Now we know that you are demon-possessed! Abraham died and so did the prophets, yet you say that if anyone keeps your word, he will never taste death. Are you greater than our father Abraham? He died, and so did the prophets. Who do you think you are?’ Jesus replied, ‘If I glorify myself, my glory means nothing. My Father, whom you claim as your God, is the one who glorifies me. Though you do not know him, I know him. If I said I did not, I would be a liar like you, but I do know him and keep his word. Your father Abraham rejoiced at the thought of seeing my day; he saw it and was glad.’ ‘You are not yet fifty years old,’ the Jews said to him, ‘and you have seen Abraham!’ ‘I tell you the truth,’ Jesus answered, 'before Abraham was born, I am!” At this, they picked up stones to stone him, but Jesus hid himself, slipping away from the temple grounds.
John 10:29-33, “My Father, who has given them to me, is greater than all, no one can snatch them out of my Father’s hand. I and the Father are one.’ Again the Jews picked up stones to stone him, but Jesus said to them, ‘I have shown you many great miracles from the Father. For which of these do you stone me?’ ‘We are not stoning you for any of these,’ replied the Jews, 'but for blasphemy, because you, a mere man, claim to be God.” If you continue to read on through verse 39, you see that Jesus doesn’t correct their perception that He was claiming deity – He reiterates His claim.
John 18:4-6, “Jesus, knowing all that was going to happen to him, went out and asked them, ‘Who is it you want?’ ‘Jesus of Nazareth,’ they replied. ‘I am he,’ Jesus said. (And Judas the traitor was standing there with them.) When Jesus said 'I am he, ’ they drew back and fell to the ground.”
John 20:27-29, "Then he said to Thomas, ‘Put your finger here; see my hands. Reach out your hand and put it into my side. Stop doubting and believe.’ Thomas said to him, "My Lord and my God!’ Then Jesus told him, “Because you have seen me, you have believed; blessed are those who have not seen and yet have believed.”
John 1:29-30, “The next day John [the Baptist] saw Jesus coming toward him and said, 'Look, the Lamb of God who takes away the sin of the world! This is the one I meant when I said, ‘A man who comes after me has surpassed me because he was before me.’” Jesus was born after John the Baptist, but John says Jesus was “before” him --pointing to Jesus’ pre-existence before His birth, His deity.