Let me put it to you another way. If you sin, or fall into temptation, don't you ask yourself that there is something wrong inside of you that makes you do that? Do you think for one second that there is darkness in Jesus Christ? That Jesus had the potential to actually sin but simply chose not to sin? I am sorry, Jesus is good. Jesus is God.
When you face Jesus one day, would you rather be defending how He could have potentially done evii or in how He was always good and impeccable and perfect in all He thought and did? I say this not only because it the moral thing to do, but the Scripturs actually do say this, too. Nowhere will you find one verse that says Jesus considered in doing evil or that He had a sin nature or something bad within Him (that would make Him feel tempted to do something potentially bad).
See, Jesus said that a good tree cannot bring forth bad fruit and vise versa. Jesus is the good tree that works in a believer's life. Now, if Jesus had bad or wrong desire in him, he could not be the good tree. If there is poison in a tree, it is going to kill that tree. Sin is also referred to as darkness within the Scriptures. 1 John 1:5 says there is no darkness in God. Jesus is God. So there is no darkness or sin in Jesus. There is no sin nature. There is no inclination to sin. There is no hidden desire to sin. For to say that Jesus could have potentially sinned, means there must be a Dark source within Him that would have made Him to be able to potentially sin. But Jesus is the Light of the world that shines out darkness. How can he have darkness (potential to sin) within Him and also be the Light of the World that leads men out of darkness?