'Folly' in the Bible

Lo, he trusteth not his servants, and his angels he chargeth with folly:

And now, take for yourselves 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, for ye have not spoken of me rightly, like my servant Job.