Christians, why do you say Jesus is God?

Answer 1

We have been saying that Jesus is God since the Apostle Thomas said, "My Lord and my God!" (John 20:28)

And, of course, the Gospel of John, 1:1 "In the beginning was the Word, and the Word was with God, and the Word was God." and 1:14 "And the Word became 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."

The Nicene Creed (from the year 325) talks about the nature of Jesus Christ:

We believe in one Lord, Jesus Christ, the only Son of God, eternally begotten of the Father, God from God, Light from Light, true God from true God, begotten, not made, one in being with the Father. Through Him all things were made. For us and our salvation He came down from heaven: by the power of the Holy Spirit, He was born of the Virgin Mary, and became man. For our sake He was crucified under Pontius Pilate; He suffered, died, and was buried. On the third day He rose again in fulfillment of the scriptures: He ascended into heaven and is seated at the right hand of the Father. He will come again in glory to judge the living and the dead, and his kingdom will have no end.

The Catechism of the Catholic Church explains what we believe in depth:
http://www.nccbuscc.org/catechism/text/pt1sect2chpt2.htm

For many Scriptures that refer to Jesus as God and the Trinity, see: http://www.cwo.com/~pentrack/catholic/Trinity.txt

With love in Christ.

Answer 2

Christians today say it, because that is what they've been told.

Unfortunately, few christians have ever heard that the official title "Son of God" was reserved in the ancient world before 500 BCE exclusively to Egyptian Pharaohs.
http://one-faith-of-god.org/old_testament/sources/son_of_god/son_of_god_0010.htm

Nor have christians usually heard that the title "Son of God" was used by Alexander the Great upon conquering Egypt and claiming right to be Pharaoh. That the Roman Emperors from Augustus for over a hundred years also claimed the title of "Son of God" for themselves and even had it minted on coins across the entire Roman Empire
See:
http://one-faith-of-god.org/old_testament/apocrypha/son_of_god_2/son_of_god_2_0010.htm

Nor are Christians familiar with the tale that Moses, was not Moses at all but Pharaoh Akhenaten and that the descendents of the High Priests that called themselves the "Sons of Zadok" were the true bloodline heirs of the Pharaohs of Egypt.

Yet in the Israel Museum is the Copper Scroll, one of the most sacred and important surving artefacts from Qumran (Dead Sea Scoll) onwhich is written in Greek the cryptic message "Akhenaten is also Zadok".
http://one-faith-of-god.org/old_testament/sources/copper_scroll/copper_scroll_0010.htm

Mary was Essene and a "Daughter of Zadok" the bloodline of the High Priests and therefore the true "Sons of God".

But if Jesus was to use such a title in direct challenge to the Sadducees and Pharisees of his day, this would be a challenge of epic proportions.

It would require a plan to somehow hide such overwhelming evidence that the Bible was a ficticious story. Could this be why the religion of Paul of Tarsus is so literal concerning Jesus being an actual God?

Answer 3

We believe that Jesus is God because it is written in the Bible.

John 1:1-3
'In the beginning was the Word and the Word was with God, and the Word was God. He was with God in the beginning. Through him all things were made; without him nothing was made that has been made'

John 1:14
'The Word became flesh and made his dwelling among us. We have seen his glory, the glory of the One and Only, who came from the Father, full of grace and truth.'

Answer 4

Christians had a basic problem. Their messiah candidate not only failed to reestablish the throne of David, he got killed.

In order to resurrect the movement and give it some legitimacy, they went from Jesus as messiah (a.k.a. christ or king of the jews) to Jesus as god. It makes no sense to us but people bought it back then because they were familiar with the Greek and Roman gods coming down and having children by virgins. Hercules, son of Zeus (and a virgin) is probably the best known.

Answer 5

you can read sura 19- Mary (Maryam)
from the holy Quran http://www.quran-islam.org/101.html