[56] But yet, though Moses had thus an accurate knowledge of him from his experience of him for a long time, and though he knew his excellence both in word and deed, and the greatness of his good will towards his nation, yet he did not think fit to leave him as his successor himself, fearing lest he might perchance be deceived in looking on that man as good who in reality was not so, since the tests by which one can judge of human nature are in a great degree indistinct and unstable.