Share 'When I am witnessing to a Mormon, how do I convince them that God is not flesh?'

I find it interesting what they believe. I know what I believe, and I believe God is spirit. The trinity. But how do I convince that to a mormon when they go directly to certain scriptures in the bible and show me that is says He is flesh. example:How did God have a SON? example:We are made in HIS image. Also they point out that God "knew us" before we came to earth, so we must have all been sp...