God’s affirmation of the material world is seen in the fact that He uses physical water to introduce people into His kingdom, and by the fact that we eat Christ’s flesh and drink His blood in the Lord’s Supper. Many Christians, however, cannot embrace such physical ideas. Water baptism, is thus reduced to a mere symbol instead of a powerful communication from God, and so are the bread and wine of the Supper. Such a reduction was not the view of the Protestant Reformers, who sought to correct the magical views of the Papal Church, without denying that God really acts through such material means.
Jordan, James. Creation in Six Days, pg. 73.