A "fool" is one who says, "God is over there or over here speaking in this building".
A "fool" reads words in a book and thinks it's speaking to him.
A "fool" listens to a false prophet showing him all sorts of signs and wonders and quotes from the Bible that contains these words that they never abide by;
Deuteronomy 28
15: “But if you will not obey the voice of the Lord your God or be careful to do all his commandments which I command you this day, then all these curses shall come upon you and overtake you.
16: Cursed shall you be in the city, and cursed shall you be in the field.
17: Cursed shall be your basket and your kneading-trough.
18: cursed shall be the fruit of your body, and the fruit of your ground, the increase of your cattle, and the young of your flock.
19: Cursed shall you be when you come in, and cursed shall you be when you go out.
20: “the Lord will send upon you curses, confusion, and frustration, in all that you undertake to do, until you are destroyed and perish quickly, on account of the evil of your doings, because you have forsaken me.
21: The Lord will make the pestilence cleave to you until he has consumed you off the land which you are entering to take possession of it.
22: The Lord will smite you with consumption, and with fever, inflammation, and fiery heat, and with drought, and with blasting, and with mildew; they shall pursue you until you perish.
23: And the heavens over your head shall be brass, and the earth under you shall be iron.
24: The Lord will make the rain of your land powder and dust; from heaven it shall come down upon you until you are destroyed.
61: Every sickness also, and every affliction which is not recorded in the book of this law, the LORD will bring upon you, until you are destroyed.
62: Whereas you were as the stars of heaven for multitude, you shall be left few in number; because you did not obey the voice of the LORD your God.
63: And as the LORD took delight in doing you good and multiplying you, so the LORD will take delight in bringing ruin upon you and destroying you; and you shall be plucked off the land which you are entering to take possession of it.
Those of you who have never heard My Voice will never know what the Tree of Life is.