“It appears that mankind in this life are not agents of trial for eternity, but that they will eternally remain agents of trial.”

Source: Reason: The Only Oracle Of Man (1784), Ch. III Section III - Human Liberty, Agency and Accountability, cannot be attended with Eternal Consequences, either Good or Evil
Context: It appears that mankind in this life are not agents of trial for eternity, but that they will eternally remain agents of trial. To suppose that our eternal circumstances will be unalterably fixed in happiness or misery, in consequence of the agency or transactions of this temporary life, is inconsistent with the moral government of God, and the progressive and retrospective knowledge of the human mind. God has not put it into our power to plunge ourselves into eternal woe and perdition; human liberty is not so extensive, for the term of human life bears no proportion to eternity succeeding it; so that there could be no proportion between a momentary agency, (which is liberty of action,) or probation, and any supposed eternal consequences of happiness or misery resulting from it.