'Whether' in the Bible

And who knoweth whether he will be a wise man or a fool? yet shall he have rule over all my labour at which I have laboured, and wherein I have been wise under the sun. This also is vanity.

The sleep of the labourer is sweet, whether he have eaten little or much; but the fulness of the rich doth not suffer him to sleep.

In the morning sow thy seed, and in the evening withhold not thy hand; for thou knowest not which shall prosper, whether this or that, or whether they both shall be alike good.

For God shall bring every work into judgment, with every secret thing, whether it be good or whether it be evil.