Is Jesus God?

Yes, Jesus is God.

The first words of John's gospel imply that Jesus ("the Word") is God. In the beginning was the Word, and the Word was with God, and the Word was God. John 1:1 And the Word was made flesh, and dwelt among us. John 1:14
And Jesus (sometimes) claimed to be God.: By forgiving sins. (Only God can forgive sins.)
Jesus ... said unto the sick of the palsy; Son, be of good cheer; thy sins be forgiven thee. And, behold, certain of the scribes said within themselves, This man blasphemeth ... That ye may know that the Son of man hath power on earth to forgive sins, (then saith he to the sick of the palsy,) Arise, take up thy bed, and go unto thine house. Matthew 9:2-6, Mark 2:3-12
Therefore did the Jews persecute Jesus, and sought to slay him, because he had done these things on the sabbath day. But Jesus answered them, My Father worketh hitherto, and I work. Therefore the Jews sought the more to kill him, because he not only had broken the sabbath, but said also that God was his Father, making himself equal with God. John 5:16-18; By declaring himself, "Lord of the Sabbath."
The Son of man is Lord even of the sabbath day. Matthew 12:8, Mark 2:28, Luke 6:5; By claiming to be the same as God.
He that hath seen me hath seen the Father. John 14:9; By saying that he existed before Abraham, using one of God's names, "I am."
Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am. John 8:58

After hearing Jesus say these things, the Jews tried to stone him to death for claiming to be God.

I and my Father are one. Then the Jews took up stones again to stone him. John 10:30-31
The Father is in me, and I in him. Therefore they sought again to take him. John 10:38-39

And when Thomas called Jesus God, Jesus didn't correct him. Rather, he said that everyone should believe he is God, even those who have never seen him.

And Thomas answered and said unto him, My LORD and my God. Jesus saith unto him, Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed. John 20:28-29

The New Testament (sometimes) also refers to Jesus as God.

By saying:: That the church of God was purchased with the blood of God (or maybe the Holy Ghost).
Take heed therefore unto yourselves, and to all the flock, over the which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood. Acts 20:28; That Jesus created all things.
For by him [Jesus] were all things created. Colossians 1:16; That the fulness of the Godhead dwells in Jesus bodily.
For in him [Jesus] dwelleth all the fulness of the Godhead bodily. Colossians 2:9; That God was made manifest in Jesus's flesh.
God was made manifest in the flesh. 1 Timothy 3:16; That Jesus is the great God who is in the form of God, is equal to God, and sits on the throne of God.
Looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ. Titus 2:13
Who, being in the form of God, thought it not robbery to be equal with God. Philippians 2:6

But unto the Son he saith, Thy throne, O God, is for ever and ever: a sceptre of righteousness is the sceptre of thy kingdom. Hebrews 1:8

In the book of Revelation, Jesus calls himself the first and the last, and the alpha and the omega. (Which I guess means that he thinks he's God or something.)

I am the first and the last. Revelation 1:17
I am Alpha and Omega, the beginning and the end, the first and the last. Revelation 22:13

No, Jesus is not God.

God cannot be tempted.

God cannot be tempted. James 1:13

Yet Jesus was tempted. (So he isn't God.)

Then was Jesus led up of the spirit into the wilderness to be tempted of the devil. Matthew 4:1
Jesus ... Being forty days tempted of the devil. Luke 4:1-2

Jesus ... was in all points tempted like as we are. Hebrews 4:14-15

Jesus (sometimes) denied that he was God.

By saying:: That he was neither good nor God.
And he said unto him, Why callest thou me good? there is none good but one, that is, God. Matthew 19:17, Mark 10:18; That his father was greater than he was.
My Father is greater than I. John 14:28; That he was just a man, a child of God like everyone else.
I ascend unto my Father, and your Father; and to my God, and your God. John 20:17
But now ye seek to kill me, a man that hath told you the truth, which I have heard of God. John 8:40

As he was dying, Jesus asked God why he had foresaken him. (Can God forsake God?)

My God, my God, why hast thou forsaken me? Matthew 27:46, Mark 15:34

After Jesus died, he sat on the right hand of God. (Can God sit on his own right side?)

So then after the Lord had spoken unto them, he was received up into heaven, and sat on the right hand of God. Mark 16:19
Christ sitteth on the right hand of God. Colossians 3:1

Jesus Christ: who is ... on the the right hand of God. 1 Peter 3:21-22

Jesus is the man God chose to judge other men and be their mediator.

Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead. Acts 17:31 For there is one God, and one mediator between God and men, the man Christ Jesus. 1 Timothy 2:5

But he is still subject to God.

And when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all. 1 Corinthians 15:28

And although his head is God, the rest of him is human.

The head of Christ is God. 1 Corinthians 11:3

Is Jesus God?

Yes, Jesus is God.

No, Jesus is not God.

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