'Foolish' in the Bible

But he said to her, “You speak as one of the [spiritually] foolish women speaks [ignorant and oblivious to God’s will]. Shall we indeed accept [only] good from God and not [also] accept adversity and disaster?” In [spite of] all this Job did not sin with [words from] his lips.

“For anger slays the foolish man,And jealousy kills the simple (naive).

“I have seen the foolish taking root [and outwardly prospering],But I cursed his dwelling immediately [for his destruction was certain].

“Behold, all of you have seen it;Why then do you act vainly and foolishly [cherishing worthless concepts]?