John 1-4 states: "In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by him; and without him was not any thing made that was made. In him was life; and the life was the light of men."
Notice that the Scriptures are saying, Christ (The Word) was in the beginning
and He was with God and He WAS God. It also states that, Christ (The Word)
created ALL things and without Him, nothing was made. These verses alone,
tell us that Christ is God and that He created everything that is.
So, when Christ (God) came to earth, He was born in a physical body and He
died in a physical body. It was "God" who came in the flesh. There's no
mistaking that fact.