'Silly' in the Bible

Ephraim also is like a silly dove, without heart or good sense;They call to Egypt [for help], they go to Assyria.

O you foolish and thoughtless and superficial Galatians, who has bewitched you [that you would act like this], to whom—right before your very eyes—Jesus Christ was publicly portrayed as crucified [in the gospel message]?

Are you so foolish and senseless? Having begun [your new life by faith] with the Spirit, are you now being perfected and reaching spiritual maturity by the flesh [that is, by your own works and efforts to keep the Law]?

Let there be no filthiness and silly talk, or coarse [obscene or vulgar] joking, because such things are not appropriate [for believers]; but instead speak of your thankfulness [to God].

But have nothing to do with irreverent folklore and silly myths. On the other hand, discipline yourself for the purpose of godliness [keeping yourself spiritually fit].

For among them are those who worm their way into homes and captivate morally weak and spiritually-dwarfed women weighed down by [the burden of their] sins, easily swayed by various impulses,