1. God is All Knowing... but Jesus was not.
When speaking of the Day of Judgment, Jesus clearly gave evidence of a limitation on his knowledge when he said, "but of that day and hour knoweth no man, no, not the angels which are in Heaven, neither the son, but the Father." (Mark 13:32 and Matt 24:36) But God knows all. His knowledge is without any limitations. That Jesus, of his own admission, did not know when the Day of Judgment would be, is clear proof that Jesus is not all-knowing, and that Jesus is therefore not God.
2. God is All-Powerful... but Jesus was not.
While Jesus performed many miracles, he himself admitted that the power he had was not his own, but derived from God. He said, "Verily I say unto you, the Son can do nothing of himself, but what he seeth the Father do..." (John 5:19) Again he said, "I can of mine own self do nothing: As I hear I judge, and my judgment is just because I seek not mine own will but the will of the Father which has sent me." (John 5:30) But God is not only all-powerful, He is also the source of all power and authority. That Jesus, of his own admission, could do nothing on his own is clear proof that Jesus is not all-powerful, and that therefore Jesus is not God.