sentences:  This he says, ‘definitely cast[s] the Son down from his rank.’ This is because it implies that the Father is God in a way the Son is not.Modern scholars are agreed that this was a sixteenth century form of what today is called, ‘subordinationism’.Richard Muller says Calvin recognised that what his opponents were teaching ‘amounted to a radical subordination of the second and third persons, with the result that the Father alone is truly God.’ Ellis adds that this teaching also implied tritheism, three separate Gods.