Is Jesus a God?

I've been having a heated discussion with a fellow church member about the differences between James and Paul. How James was under a different dispensation than Paul, my friend can't buy that. I was wondering what scriptures I could show him that would back up my argument? I tried to explain how James was a legalist, that his teaching was faith plus works for salvation, and Paul's teaching is Faith. Can you help?

If the Father is God then how can Jesus be God also?

Was Jesus incarnated? Is the virgin birth necessary for incarnation?

God told Moses to tell the Israelites that, "I Am hath sent you". What does this name mean or does it have meaning at all?

Does the God of the Bible leave some sick while healing others?

Benny Hinn, John Hagee, Rod Parsley and many others from TBN practice healing and speaking in tongues along with other things. Is this scriptural?

Why do Christians say God is self-existent, eternal, spirit and trinitarian? What scriptures support this claim?

Some say God's essence is spirit and, therefore, that image is mind, will, and emotions (or similar variations) and cannot include anything physical like a body. Some put forth that the image is spirit, soul, and body. But even most of those admit that the body is looking forward to Jesus as God in the flesh. Why couldn't the Word have had a physical body before the incarnation and, thus, man being made in God's image would be body, soul, and spirit?

If someone is murdered before they had a chance to be saved (especially a young person), will they still obtain salvation? The person who committed the crime of the unsaved, if they are saved & confess/repent, will they still receive salvation even if the person they murdered doesn't?