There are certain secret things we just can't know.
They belong to God alone.
These include things like what's going to happen in the future... as well as His hidden purposes concerning ourselves, other people and nations.
Yet there are many things God has revealed...
Things He wants us to know and do.
These include all He's disclosed about evils to forsake, promises to believe and commands to obey.
Living fruitfully involves spending less time obsessing and speculating about the secret things while giving more attention and devotion to what He's revealed.