There are two things we need to take seperately:
1. Did Jesus Exist?
2. Was Jesus the (son of) God?
1. Virtually all modern scholars of antiquity agree that Jesus existed, [1] [2] [3] [4] while expressing a wide spectrum of opinions on how accurately the views of the historical Jesus are reflected in the picture presented by the early Christian movement.
Geoffrey Blainey notes that a few scholars have argued that Jesus did not exist, but writes that Jesus' life was in fact "astonishingly documented" by the standards of the time - more so than any of his contemporaries - with numerous books, stories and memoirs written about him. The problem for the historian, wrote Blainey, is not therefore, determining whether Jesus actually existed, but rather in considering the "sheer multitude of detail and its inconsistencies and contradictions"
(quote from this article in wikipedia).
2. The problem is that we just have no evidence or proof. In my opinion it is quite unfair that I, as a human, should believe in something (at the cost of losing eternal life mind!) that can not be consistently backed up. In my opinion a book like the bible is not consistent, it has a lot of flaws and can therefore not be a usefull guide to know if he was/is the son of God. Also texts of Flavius Josephus can be flawed and exhagerated. Yes... we know Jeruzalem was attacked by the Romans and we also know that it is found in the Gospels but it may be also usefull to know when the gospels were written and by whom:
Matthew: written between 80-90 AD
Mark: written between 66-73 AD
Luke: written between 60-130 AD
John: written around 90 AD
Also note that the book of revelation is written around 70
So... what worth is a prophecy if it is probably all written down WHILE or AFTER the events are taking place?! Also note that of all the Gospels there were not really many eyewitnesses of the life of Christ. Only John can be seen as one and even this is questioned because only sources of the second century are saying he wrote it and these sources are questionable... Matthew is probably not even written by Matthew himself and has probably the same source as Mark. So... even though the gospels are nice reads and have a lot of nice teachings it is hardly a source we can 100% rely on.
I am planning to study the gospels verse by verse and this time marking events that can not have occured because of the lack of witnesses.
For example: The record of the prayer of Jesus is probably impossible since everyone was asleep. Also... when Jesus is with Pilatus he is speaking well known words like that he is a witness of the truth and that everyone who listens to his voice will know the truth. But who could have recorded this? There was no disciple in the room at that moment now was there?
The ONLY explanation is this one: this must have been given by Holy Spirit to the apostles or disciples. But... we ... do... not... know! It is frustrating isn't it?