Psalm 53 opens with the words:
The fool has said in his heart,
“There is no God.”
This verse gives us the true definition of foolishness. Foolishness is when ever we believe, think or act in a way that denies God’s existence or ignores what He has said.
A person could display this foolishness in a general sense living their life whole life on the premise that there is no God. But any of us can display foolishness, whenever we think or behave in a way that fails to believe or acknowledge something God has said or done, because in practice we are then believing, thinking or behaving as if ” There is no God”.
Any time I fail to believe the simplest truths God tells me about Himself, that He loves me, that He will never leave me nor forsake me, I’m acting foolishly, as if God hasn’t said those things….and therefore as if “There is no God”. I’m believing and placing more weight in my own thoughts, my own perspective and my own truth than His, which when put like that does seem rather foolish.
A scripture that expresses the opposite side of the coin is Proverbs 9:10 ” The fear of the Lord is the beginning of wisdom”. If we fear God we lay great weight on what He says and therefore anything He says is to be totally trusted, relied on and acted on. Therefore we should never allow ourselves to think or act in a way that doubts or denies what He has said and therefore as if “There is no God”. What He has said we depend on, we hang on to it. We always believe what He says can be “taken to the bank”, totally relied on.
In brief, true foolishness is failing to trust or believe God, while trusting, relying on Him is true wisdom.