The "parable of the vineyard" assures us that God rewards us regardless of our hard work and investment, but only if we're called, only if God chooses us.

葡萄园的寓言“使我们确信,无论我们是否努力工作都会得到上帝的奖励，但除非上帝选择了我们。

耶鲁公开课 - 弥尔顿课程节选

He's going to ameliorate their conditions, he's going to make their slavery on his plantations so effective, so good, such a even joyous form of labor, that he will be doing God's work by improving slavery.

他会改善奴隶们的生活条件,他会让自己种植园的奴隶们,提高工作效率,优化管理模式,奴隶甚至是一种令人享受的工作,他会按照上帝的旨意提升奴隶的生活水平

耶鲁公开课 - 美国内战与重建课程节选