Why would God want to write something we would not understand? On the other hand, there are many things in the Bible that are hard to understand, or comprehend at all. Like John 1:1 (In the beginning was the Word, and the Word was with God, and the Word was God.) for example.
I believe that when Jesus said "my God, my God, why have you forsaken me?" he had been separated from God temporarily, thus making him "not God."
Here are places where he says that he is God:
"I and the Father are one." The Jews took up stones again to stone Him. Jesus answered them, "I showed you many good works from the Father; for which of them are you stoning Me?" The Jews answered Him, "For a good work we do not stone You, but for blasphemy; and because You, being a man, make Yourself out to be God." (John 10:30-33)
And Jesus cried out and said, "He who believes in Me does not believe in Me, but in Him who sent Me. And he who beholds Me beholds the One who sent Me. I have come as light into the world, that everyone who believes in Me may not remain in darkness." (John 12:44-46)
And so when He had washed their feet, and taken His garments, and reclined at the table again, He said to them, "Do you know what I have done to you? You call Me Teacher and Lord; and you are right, for I am. If I then, the Lord and the Teacher, washed your feet, you also ought to wash one another's feet." (John 13:12-14)
Jesus said to him, "I am the way, and the truth, and the life; no one comes to the Father, but through Me. If you had known Me, you would have known My Father also; from now on you know Him, and have seen Him." Philip said to Him, "Lord, show us the Father, and it is enough for us." Jesus said to him, "Have I been so long with you, and yet you have not come to know Me, Philip? He who has seen Me has seen the Father; how do you say, 'Show us the Father'?" (John 14:6-9)
Jesus therefore said to them, "Truly, truly, I say to you, it is not Moses who has given you the bread out of heaven, but it is My Father who gives you the true bread out of heaven. For the bread of God is that which comes down out of heaven, and gives life to the world." They said therefore to Him, "Lord, evermore give us this bread." Jesus said to them, "I am the bread of life; he who comes to Me shall not hunger, and he who believes in Me shall never thirst." (John 6:32-35)
Again therefore Jesus spoke to them, saying, "I am the light of the world; he who follows Me shall not walk in the darkness, but shall have the light of life." The Pharisees therefore said to Him, "You are bearing witness of Yourself; Your witness is not true." Jesus answered and said to them, "Even if I bear witness of Myself, My witness is true; for I know where I came from, and where I am going; but you do not know where I come from, or where I am going." (John 8:12-14)
Jesus therefore said to them again, "Truly, truly, I say to you, I am the door of the sheep. All who came before Me are thieves and robbers, but the sheep did not hear them. I am the door; if anyone enters through Me, he shall be saved, and shall go in and out, and find pasture. The thief comes only to steal, and kill, and destroy; I came that they might have life, and might have it abundantly. I am the good shepherd; the good shepherd lays down His life for the sheep." (John 10:7-11)
Martha therefore said to Jesus, "Lord, if You had been here, my brother would not have died. Even now I know that whatever You ask of God, God will give You." Jesus said to her, "Your brother shall rise again." Martha said to Him, "I know that he will rise again in the resurrection on the last day." Jesus said to her, "I am the resurrection and the life; he who believes in Me shall live even if he dies, and everyone who lives and believes in Me shall never die. Do you believe this?" She said to Him, "Yes, Lord; I have believed that You are the Christ, the Son of God, even He who comes into the world." (John 11:21-27)
"For God so loved the world, that He gave His only begotten Son, that whoever believes in Him should not perish, but have eternal life. For God did not send the Son into the world to judge the world, but that the world should be saved through Him. He who believes in Him is not judged; he who does not believe has been judged already, because he has not believed in the name of the only begotten Son of God." (John 3:16-18)
In the beginning was the Word, and the Word was with God, and the Word was God. (John 1:1) <--it is common knowledge among Christians that the Word referred to here is Jesus, as the context is obviously talking about Him.
this quote might be interesting for you:
The issue with these three alternatives is not which is possible, for it is obvious that all three are possible. But rather, the question is 'which is more probable?' Who you decide Jesus Christ is must not be an idle intellectual exercise. You cannot put Him on the shelf as a great moral teacher. That is not a valid option. He is either a liar, a lunatic, or Lord and God. You must make a choice. 'But,' as the Apostle John wrote, 'these have been written that you may believe that Jesus is the Christ, the Son of God; and' - more important - 'that believing you might have life in His name' (John 20:31).
In Mathew 16:15, Jesus put it this way, 'But who do you say that I am?' One of His disciples, Simon Peter, replied: 'You are the Christ, the Son of the living God.'
a quote from C.S. Lewis:
I am trying here to prevent anyone saying the really foolish thing that people often say about Him: 'I'm ready to accept Jesus as a great moral teacher, but I don't accept His claim to be God.' That is the one thing we must not say. A man who was merely a man and said the sort of things Jesus said would not be a great moral teacher. He would either be a lunatic - on the level with the man who says he is a poached egg - or else he would be the Devil of Hell. You must make your choice. Either this man was, and is, the Son of God: or else a madman or something worse. You can shut Him up for a fool, you can spit at Him and kill Him as a demon; or you can fall at His feet and call Him Lord and God. But let us not come with any patronising nonsense about His being a great human teacher. He has not left that open to us. He did not intend to.
I did some research on this "Sabbatai Zevi." He was not debunked by logic. Instead, he was excommunicated by Jewish Rabbis. Jewish rabbis did a similar thing to Jesus, but worse: they "killed" him. Zevi also later converted to Islam.
Also, I want to point out a passage in Genesis, as follows:
"Let us make man in our image." (Genesis 1:26a)
I find this site explains what I wish to say in a excellent way:
http://www.carm.org/christianity/christian-doctrine/let-us-make-man-our-image
Anyways, when Jesus says:
The Jews therefore said to Him, "You are not yet fifty years old, and have You seen Abraham?" Jesus said to them, "Truly, truly, I say to you, before Abraham was born, I am." Therefore they picked up stones to throw at Him; but Jesus hid Himself, and went out of the temple. (John 8:57-59)
He is referring to this passage in Genesis, saying that he was the other part of the "us" (along with the Holy Spirit, of course).