they attributed the passion to the divinity of Christ and thereby destroyed his immutability and impassibility. Those named in the first two groups are Gnostics, who usually attributed some type of divinity to Christ, but in general tended to reject his humanity. Apollinarius is more problematic, for Theodoret considers the presence of his ideas especially damning, since he understood what was at stake and accepted both the divinity and the humanity, which he rightly sought to unite in one person.