'Knoweth' in the Bible

And who knoweth whether he will be a wise man or a fool? yet will he have rule over all my labor wherein I have labored, and wherein I have showed myself wise under the sun. This also is vanity.

Who knoweth the spirit of man, whether it goeth upward, and the spirit of the beast, whether it goeth downward to the earth?

Better is a poor and wise youth than an old and foolish king, who knoweth not how to receive admonition any more.

For what advantage hath the wise more than the fool? or what hath the poor man, that knoweth how to walk before the living?

For who knoweth what is good for man in his 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?

for oftentimes also thine own heart knoweth that thou thyself likewise hast cursed others.

Who is as the wise man? and who knoweth the interpretation of a thing? A man's wisdom maketh his face to shine, and the hardness of his face is changed.

for he knoweth not that which shall be; for who can tell him how it shall be?

For all this I laid to my heart, even to explore all this: that the righteous, and the wise, and their works, are in the hand of God; whether it be love or hatred, man knoweth it not; all is before them.

For man also knoweth not his time: as the fishes that are taken in an evil net, and as the birds that are caught in the snare, even so are the sons of men snared in an evil time, when it falleth suddenly upon them.

A fool also multiplieth words: yet man knoweth not what shall be; and that which shall be after him, who can tell him?

The labor of fools wearieth every one of them; for he knoweth not how to go to the city.