What Does the Bible Say about Fools?

I have seen numerous videos on YouTube and read in other places what it meant here. The beginning of wisdom, according to the Bible, is this belief in God (and a bonus to worship him groveling on one's belly). So, this verse is saying that since belief in God is the first wisdom, then non-belief in God is foolish. Thus, the verse is calling anyone not believing in the sky-daddy foolish.

Note that it is ok for the bible to call someone a fool in this way, but if someone else calls someone a fool, they are put to death.

Here's the bible to back this up, according to Google:

“The discretion of a man makes him slow to anger, and his glory is to overlook a transgression” (Proverbs 19:11). Then Jesus said, “Whoever says, 'You fool,' shall be guilty enough to go into fiery hell” (Matthew 5:22c).

Thanks for reading me.