Just to take one example of several, in John 10:30 Jesus says, "I and the Father are one." The commentary in the NIV study Bible says that the Greek word for "one" indicates "one in essence or nature." So essentially Jesus claims to be the same as God, or since there is only one God, he is God.
In John 8:58 Jesus says "before Abraham was born, I am." The Jews understand that only God says "I am," which implies without beginning and without end.
In John 6:35 he said "I came down from heaven." Which the Jews of the day considered blashphemy as he's claiming divine origin.
In John 14:9 he said "anyone who has seen me has seen the Father." Again, identifying himself with God.
An early Christian creed (the Nicene Creed - 325 AD) identifies Jesus as
|God from God, Light from Light,
true God from true God,
begotten, not made,
of one Being with the Father.
So apparently this was something the early church also taught, before it divided into "sects."
I'm certainly no authority, but that is what it says. Everyone's free to judge for themselves.
(and besides, it's probably way too far off-topic, anyway)