'Foolish' in the Bible

And everyone who hears these words of mine and does not do them will be like a foolish man who built his house on the sand.

Now five of them were foolish and five [were] wise.

For [when] the foolish ones took their lamps, they did not take olive oil with them.

And the foolish ones said to the wise ones, 'Give us [some] of your olive oil, because our lamps are going out!'