Ecclesiastes 3:11

3:11 God has made everything fit beautifully in its appropriate time,

but he has also placed ignorance in the human heart

so that people cannot discover what God has ordained,

from the beginning to the end of their lives.

Ecclesiastes 3:22

3:22 So I perceived there is nothing better than for people to enjoy their work,

because that is their reward;

for who can show them what the future holds?

Ecclesiastes 4:16

4:16 There is no end to all the people nor to the past generations,

yet future generations will not rejoice in him.

This also is profitless and like chasing the wind.

Ecclesiastes 6:12

6:12 For no one knows what is best for a person during his life –

during the few days of his fleeting life –

for they pass away like a shadow.

Nor can anyone tell him what the future will hold for him on earth.

Ecclesiastes 8:10

Contradictions to the Law of Retribution

8:10 Not only that, but I have seen the wicked approaching and entering the temple,

and as they left the holy temple, they

boasted in the city that they had done so.

This also is an enigma.

Ecclesiastes 12:3

12:3 when those who keep watch over the house begin to tremble,

and the virile men begin to stoop over,

and the grinders begin to cease because they grow few,

and those who look through the windows grow dim,