The First Answer

Now either He was God or He was not. If He was not God, then either Christ knew it and was a liar or did. not know it, did not realise it, and was therefore Insane.

There is no evidence from His life that He was a liar. There is no evidence that he was insane. The New Testament which records His life is one of the most thoroughly tested of all historical documents and neither that document nor any other contemporary writings support such a suggestion.