Jesus is God. It was God Himself who came down to earth in flesh form (John 1:14) in order to die for our sins, because God was the only one who was good enough, perfect enough to be our sacrifice.
Therefore, that scenario (if Jesus rebelled) could not possibly happen, since God Himself made up His own mind to come to earth and save humanity, His own Creation because He loved us so much. The Father is Spirit, soul and body and Jesus Christ was God in flesh form, so He couldn't very well rebel against Himself once He had decided to rescue humanity, down He came to earth and fulfilled His own desire to save anyone who would repent and turn to Him for salvation. I thank God that He did fulfil His own ambition to save us, otherwise we would have all perished as they did in the Great Flood when they wouldn't listen to Noah's preaching of what was to come, when Noah was a preacher of righteousness. The whole world ignored his warnings and the only ones who listened were his wife, his three sons and their wives. Consequently, they were the only 8 people who were saved.