Jesus is God

At least on three occasions the religious leaders of Jesus’ day understood that Jesus was claiming to be God or equal with God.

John 10:27-33 (NKJV)

27 My sheep hear My voice, and I know them, and they follow Me. 28 And I give them eternal life, and they shall never perish; neither shall anyone snatch them out of My hand. 29 My Father, who has given them to Me, is greater than all; and no one is able to snatch them out of My Father's hand. 30 I and My Father are one." 31 Then the Jews took up stones again to stone Him. 32 Jesus answered them, "Many good works I have shown you from My Father. For which of those works do you stone Me?" 33 The Jews answered Him, saying, "For a good work we do not stone You, but for blasphemy, and because You, being a Man, make Yourself God."

John 5:17-18 (NKJV)

17 But Jesus answered them, "My Father has been working until now, and I have been working." 18 Therefore the Jews sought all the more to kill Him, because He not only broke the Sabbath, but also said that God was His Father, making Himself equal with God.

John 8:56-59 (NKJV)

56 Your father Abraham rejoiced to see My day, and he saw it and was glad." 57 Then the Jews said to Him, "You are not yet fifty years old, and have You seen Abraham?" 58 Jesus said to them, "Most assuredly, I say to you, before Abraham was, I AM." 59 Then they took up stones to throw at Him; but Jesus hid Himself and went out of the temple, going through the midst of them, and so passed by.