Muffled
Jesus in me
What you appear to be saying (Im basing this on your use of the phrase as opposed to) is that you see it as impossible that God could be spirit and also have a corporeal body. We dont believe that to be the case at all. We see the spirit (whether it be ours spirits or Gods spirit) as a life force which can either reside within a corporeal body or fully independent of such a body. And yes, Joseph Smith did say that God has a body of flesh. He was referring to physical form. When the Bible says that God is spirit, it is referring to the essence of Gods being (i.e. His spirit). With respect to whether God has or does not have a corporeal body, the Bible simply doesnt say one way or the other.
Quite simply then a statement by the Mormon church that God is in a body is not Biblical.