'Folly' in the Bible

In all this Job hath not sinned, nor given folly to God.

Behold, he put no trust in his servants; and his angels he charged with folly:

Men groan from out of the city, and the soul of the wounded crieth out: yet God layeth not folly to them.

Sons of folly -- even sons without name, They have been smitten from the land.

Therefore take unto you now seven bullocks and seven rams, and go to my servant Job, and offer up for yourselves a burnt offering; and my servant Job shall pray for you: for him will I accept: lest I deal with you after your folly, in that ye have not spoken of me the thing which is right, like my servant Job.