[38] And at other times it is necessary that those who think themselves worthy to claim the just things of God, should first of all fulfil their human duties; for it is great folly to expect to attain to what is of greater importance, while one is unable properly to discharge what is of less consequence. First of all, therefore, be ye known for your virtue among men, that you may also become established by that which relates to God." This is the advice which perseverance gives to the man inclined to the practise of virtue; but we must now examine her several expressions with accuracy.