mōros

(Translation from NRSV for the New Testament and Brenton for the Septuagint with a few modifications for a more literal meaning)

Matthew

5, 22	But I say to you that if you are angry with a brother or sister, you will be liable to judgment; and if you insult a brother or sister, you will be liable to the council; and if you say, 'You fool (mōros),' you will be liable to the hell of fire.
7, 26	And everyone who hears these words of mine and does not act on them will be like a foolish (mōros) man who built his house on sand.
23, 17	You blind fools (mōros)! For which is greater, the gold or the sanctuary that has made the gold sacred?
25, 2	Five of them were foolish (mōros), and five were wise.
25, 3	When the foolish (mōros) took their lamps, they took no oil with them;
25, 8	The foolish (mōros) said to the wise, 'Give us some of your oil, for our lamps are going out.'

1 Corinthians

1, 25	For God's foolishness (mōros) is wiser than human wisdom, and God's weakness is stronger than human strength.
1, 27	But God chose what is foolish (mōros) in the world to shame the wise; God chose what is weak in the world to shame the strong;
3, 18	Do not deceive yourselves. If you think that you are wise in this age, you should become fools (mōros) so that you may become wise
4, 10	We are fools (mōros) for the sake of Christ, but you are wise in Christ. We are weak, but you are strong. You are held in honor, but we in disrepute

Titus

3, 9	But avoid stupid (mōros) controversies, genealogies, dissensions, and quarrels about the law, for they are unprofitable and worthless

2 Timothy

2, 23

Have nothing to do with stupid (mōros) and senseless controversies; you know that they breed quarrels.