Sin against the Holy Ghost or, The sin unto death. [electronic resource] : Briefly discours'd of I. proving what this sin is. And, 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 Mr. Robert Russel.