How was Christ fully human fully God?
John 1:14 “And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth” (v. 14). We have seen that Roman Catholics and Lutherans believe Christ is physically present in the elements of the Lord’s Supper . Roman Catholics teach transubstantiation — the bread and the wine become the physical body and blood of Jesus. The Lutheran position, sometimes called consubstantiation, is similar, but different — Jesus’ physical body is present in, with, and under the elements of the sacrament. Yet both positions make a basic christological mistake. Explaining this requires a brief look at the Christology of the Council of Chalcedon, called in AD 451 to defend the orthodox view of the person of Christ. The council sought to answer the question: What happened when the Son of God became incarnate? Chalcedon could not give an exhaustive explanation, but the church universal has affirmed its conclusions ever since.