Which Gospel shows Jesus as truly God while He was on earth?

Gospel of John is the only gospel that portray Jesus as god himself;

"In the beginning was the Word [Christ], and the Word was with God, and the Word was God" (1: 1)..

And the Word was made flesh, and dwelt among us.John 1:14.

Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am. John 8:58.

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

He that hath seen me hath seen the Father. John 14:9

And Thomas ed and said unto him, My LORD and my God.John 20:28

Contrary to popular belief, Mark actually has what many regard as a 'higher' and 'broader' statement of Jesus' divinity than does John.

This is plain from any superficial reading of the Gospel. For example:

- in chapter 1 verse 1 where He is called the Son of God.

- in chapter 1 verse 24 the demons He was casting out testified of His identity. This is a repeated theme in Mark see also chapter 3:11.

- in chapter 2 he forgives the sin of the paralysed man, something only God can do, and healed him to confirm His authority to do so.

- in chapter 4:35-41 He shows His power over the elements by stilling the storm.