The name Enos is interpreted "man;" and it is received as meaning, not the whole of the combined man, but as the rational part of the soul, namely, the intellect, to which it is peculiarly becoming to hope, for irrational animals are devoid of hope; but hope is a sort of presage of joy, and before joy there is an expectation of good things.
Why, after the mention of hope, Moses says, "This is the book of the generations of men?" (Genesis 5:1).