We believe that God is triune: Father, Son and Holy Spirit; the Three are coexistent, coeternal, and equally divine.

John 1:1  In the beginning was the Word, and the Word was with God, and the Word was God.

John 1:14  And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.

Jesus showed His divinity in at least four key statements. 

John 8:58 Jesus said unto them, "Verily, verily, I say unto you, Before Abraham was, I am."  Here, Jesus used the same phrase that Yahweh used to describe Himself as "I am", and the Jews recoginezed this fact, for in verse 59 it states that they picked up stones in order to stone Jesus for blasphemy.

John 10:30-33  I and my Father are one.  Then the Jews took up stones again to stone him.  Jesus answered them, "Many good works have I shewed you from my Father; for which of those works do ye stone me?"  The Jews answered him, saying, For a good work we stone thee not; but for blasphemy; and because that thou, being a man, makest thyself God.

John 14:8-9 Philip said to him, "Lord, show us the Father, and that will be enough for us."  Jesus said to him, "Have I been with you such a long time, and do you not know me, Philip? He who has seen me has seen the Father. How do you say, 'Show us the Father?' 

John 18:4-6 Jesus therefore, knowing all the things that were happening to him, went forth, and said to them, "Who are you looking for?"  They answered him, "Jesus of Nazareth." Jesus said to them, "I AM." Judas also, who betrayed him, was standing with them.  When therefore he said to them, "I AM," they went backward, and fell to the ground (Word English Bible).