I guess this is the essential difference between Christianity and Judaism, for the notion of G-d’s becoming human in form and behavior is totally alien to the nature of G-d according to Jewish belief. Doesn’t Christianity stop short of Jesus’ becoming completely human as well, since it believes Jesus, as a human, is still sinless, although tempted? Is this because Jesus is the recapitulation of humanity (i.e. Adam) BEFORE original sin, or is it due to Jesus’ dual nature, in which the divine Jesus prevents the human Jesus from falling victim to sin?
I’m not sure. I’m hoping to find out someday

. But I’ll do my best to answer some of your questions. In Christianity, God does not become human. A human is assumed into the divine. In truth, God never really changes. However, God works in union with the human person. It is once again (almost exactly) like the way the body and soul work together. My body has not become my soul. My soul does not become my body. They work together and are two natures of one person . With Christ, the human and divine meet. The human is not the divine but the divine is not human. It is together though that they create the person of Christ. The divine is not Jesus Christ. The human is not Jesus Christ. Only together are they truly Jesus Christ. However, Jesus Christ is both human and divine just as we are spiritual and material. Now, what Christ does, both do. When you eat, your soul moves to eat and your body does the eating. Both choose to eat. Both experience the eating but in different ways. The body digests it and receives the nutrition, the soul through the body gets to experience taste. Similarly, the body gets to experience spiritual things through the soul. In a sense, the soul will feel thoughts or think something and the body will speak it. The body can also create feelings in response to thoughts and the emotions of the soul. One example is crying. So, both get to experience some of the other. This is similar to Christ.
However, don’t take everything from me as it is called a mystery and isn’t going to be completely understood by us. I could very well be misinterpreting “the evidence” or I could be speaking against the church. Hopefully, though, you will one day hear of it from the King himself.
On to the next topic.The human nature of Christ could have at any point chosen to sin. If it were any other way, then why would Satan have tried to tempt Christ in the desert? However, Christ was obedient to God the Father at all points (both the human and the divine). It was probably a little easier on Christ because of his absence of original sin and the fact that he is God. So, could he realistically have sinned. Maybe, I would say not. However, there was temptation. That part would have been real to Christ, probably even more so. No sinner truly knows temptation. You can only know temptation if you endure it. A sinless man will endure temptation for much longer than sinner.
Hope this clarifies some things. I always do love this topic, as it is confusing, mysterious, and opens my eyes further to the beauty of the Lord. So, please if you have more questions, keep them coming.
Thanks, God bless
A. Heuchler