In a recent article, Carl Mosser argues that deification is present in the theology of John Calvin. While his thesis may have ecumenical promise, there is little evidence to support it. Rather than understanding salvation as a communication of properties from Christ's divine nature to his human nature so that through Christ's human nature we may come to share in the divine nature, Calvin's position is that believers share in what is Christ's according to his human nature. The righteousness of Christ with which we are clothed is the righteousness of his human obedience as Mediator. Far from emphasizing a communication of properties from Christ's divinity to his humanity, Calvin's concern is to guard the full integrity of both natures.