The unpardonable sin against the Holy Ghost: or the sin unto death briefly discoursed of: I. Proving what that Sin is. II. That all other Sins, how great and heinous soever, may be forgiven unto Men; but the blasphemy against the Holy Ghost shall never be forgiven, neither in this world, nor in the World to come. To which is added, Some Instructions how a Man may Walk, and not commit this unpardonable Sin. By Robert Russel.