In his Treatise Concerning Religious Affections, Jonathan Edwards suggested that true growth in Christian discipleship is not finally mere excitement, increasing use of religious language, or a growing knowledge of Scripture. It is not even an evident increase in joy or in love or concern for the church. Even increases in zeal and praise to God and confidence of one’s own faith are not infallible evidences of true Christian growth. What, then, is evidence of true Christian growth? According to Edwards, while all these things may be evidences of true Christian growth, the only certain observable sign of such growth is a life of increasing holiness, rooted in Christian self-denial. The church should be marked by a vital concern for this kind of increasing godliness in the lives of its members.