The subject discussed in the following pages cannot occupy a position too prominent in our Christianity, nor can it be a theme presented too frequently for our contemplation. All that we spiritually know of ourselves, all that we know of God, and of Jesus, and his Word, we owe to the teaching of the Holy Spirit; and all the real light, sanctification, strength, and comfort we are made to possess on our way to glory, we must ascribe to Him. - Preface.