Those who think that worship in Reformed churches has always been a primarily cerebral affair might be surprised to learn that John Calvin frequently taught the value of various bodily postures in worship both for expressing and for forming our faith in God. You can find a brief survey of Calvin’s teaching on posture here.
Gregory of Nazianzus, also known as Gregory the Theologian, was a 4th-century bishop of Nazianzus and, briefly, Constantinople. Here is an excerpt from his famous Third Theological Oration, in which he explains the paradoxes of Jesus’ salvation of the world in his death and resurrection:
He is sold, and very cheap, for it is only for thirty pieces of silver; but he redeems the world, and that at a great price, for the price of his own blood. As a sheep he is led to the slaughter, but he is the shepherd of Israel, and now of the whole world also. As a lamb he is silent, yet he is the Word, and is proclaimed by the voice of one crying in the wilderness. He is bruised and wounded, but he heals every disease and infirmity. He is lifted up and nailed to the tree, but by the tree of life he restores us; yea, he saves even the robber crucified with him; yea, he wrapped the visible world in darkness. He is given vinegar to drink mingled with gall. Who? He who turned the water into wine, who is the destroyer of the bitter taste, who is sweetness and altogether desired. He lays down his life, but he has power to take it again; and the veil is rent, for the mysterious doors of heaven are opened; the rocks are cleft, the dead arise. He dies, but he gives life, and by his death destroys death.