'Foolish' in the Bible

But take no part in wrong and foolish talk, for those who do so will go farther into evil,

But foolish and unlearned questions avoid, knowing that they do gender strifes.

For some of these men go into homes and deceive foolish women who are burdened with sins and swayed by all kinds of desires.

But they will go no farther: for their foolish behaviour will be clear to all men, as theirs was in the end.

And shutting their ears to what is true, will be turned away to belief in foolish stories.