The secret things belong to God
In Deuteronomy 29:29 Moses tells Israel that the secret things belong to God. Certainly there are somethings that God allows man to find out in the course of time but there are some things (many more things?) that God does not reveal. What was Jesus like as a boy? How long were Adam and Eve in the garden before they sinned? How many angels can dance on the head of a pin? We often spend so much time and effort trying to figure out what can’t be known, we don’t spend time on what God has revealed!
His Word to us tells us so much if we would only read and follow the things that are clearly understood.