Gospel sonnets: or, spiritual songs. In six parts. I. The Believer's Espousals. II. The Believer's Jointure. III. The Believer's Riddle. IV. The Believer's Lodging. V. The Believer's Soliloquy. VI. The Believer's Principles. Concerning Creation and Redemption, Law and Gospel, Justification and Sanctification, Faith and Sense, Heaven and Earth. The eighteenth edition. In which the Holy Scriptures are extended. By the late Reverend Mr Ralph Erskine, Minister of the Gospel at Dunsermline.