6:12 For who knoweth what [is] {a} good for man in [this] life, all the days of his vain life which he spendeth as a shadow? for who can tell a man what shall be after him under the sun?
(a) There is no state in which man can live to have perfect quietness in this life.
6:12 Who knoweth - No man certainly knows what is better for him here, whether to be high or low, rich or poor. Vain life - Life itself is a vain and uncertain thing, and therefore all things which depend on it must be so too. While - While it abides, hath nothing solid, or substantial in it, and which speedily passes away, and leaves no sign behind it. For - And as no man can be happy with these things while he lives, so he can have no content in leaving them to others, because he knows not either who shall possess them, or how the future owners will use or abuse them.
6:7-12 A little will serve to sustain us comfortably, and a great deal can do no more. The desires of the soul find nothing in the wealth of the world to give satisfaction. The poor man has comfort as well as the richest, and is under no real disadvantage. We cannot say, Better is the sight of the eyes than the resting of the soul in God; for it is better to live by faith in things to come, than to live by sense, which dwells only upon present things. Our lot is appointed. We have what pleases God, and let that please us. The greatest possessions and honours cannot set us above the common events of human life. Seeing that the things men pursue on earth increase vanities, what is man the better for his worldly devices? Our life upon earth is to be reckoned by days. It is fleeting and uncertain, and with little in it to be fond of, or to be depended on. Let us return to God, trust in his mercy through Jesus Christ, and submit to his will. Then soon shall we glide through this vexatious world, and find ourselves in that happy place, where there is fulness of joy and pleasures for evermore.