Word: fear in Ecclesiastes

I know that, whatsoever God doeth, it shall be for ever: nothing can be put to it, nor any thing taken from it: and God doeth it, that men should fear before him.

Ecclesiastes 5:7

For in the multitude of dreams and many words there are also divers vanities: but fear thou God.

Ecclesiastes 8:12

Though a sinner do evil an hundred times, and his days be prolonged, yet surely I know that it shall be well with them that fear God, which fear before him:

Ecclesiastes 12:13

Let us hear the conclusion of the whole matter: Fear God, and keep his commandments: for this is the whole duty of man.