" In a multitude of cases, and in all cases where regeneration is spoken of, it means the whole soul; that is, it includes the intellect, will, and the conscience as well as the affections. Hence the Bible speaks of the eyes, of the
thoughts, of the purposes, of the devices, as well as of the feelings or affections of the heart. In Scriptural language, therefore, a 'new heart' does not mean simply a new state of feeling, but a radical change in the state of the whole soul or interior man. "

― Charles Hodge