Exhortations are to be Instructive and Doctrinal

"Exhortations should be Instructive and Doctrinal, Declaratory and Manifestative, as the Scriptures plainly show. We should find the Gospel in an exhortation, and not lose it there. An exhortation should be every way suited to the Gospel Profession in the Good News its self; and sinners are not to be told that the whole of exhortations are a practical point; for a great deal of them are Doctrinal and Instructive points; and he that never made this distinction in his very defence of exhortations, hath held forth rather his own darkness, than the Word of God hereabout, a Gospel Exhortation instructs into the objects, principles and springs of motion, agreeably with a new creature-change; and then under right discourses directs to the immediate duty of believing, repenting, &c." - Joseph Hussey, God's Operation of Grace, Pg. 386