Passibility may not be affirmed of the divine nature of Christ which is incapable of any change or limitation within itself. At the same time the Word may be said to have suffered inasmuch as the suffering affected the flesh which He assumed. This subject was afterwards, carefully developed by St. John of Damascus περὶ ὀρθοδόξου πίστεως, III. 4. In c. 79, Hilary criticises the Arian statement that the Son “jointly suffered,” a word which meant that the divine nature of the Son shared in the sufferings which were endured by His humanity. This phrase, like the statement of Arius that the Logos was “capable of change” implied that the Son only possessed a secondary divinity.