“The secret things belong to the Lord our God, but those things which are revealed belong to us and to our children forever, that we may do all the words of this law.” (Deutr 29:29)
According to the Bible, there are a number of ways through which God has revealed Himself to man through the ages, e.g. by speaking directly (like to Noah and Abraham), dreams (like Jacob) by telling people to write down His words as a general message (the prophets) and also through nature (Ps 19). In “reformed speak”, we usually talk about general (through nature) and specific revelation (the Bible). What has struck me about the quoted verse, is that some things are revealed, and some not and also that there is purpose in the revelation. How privileged we are, to have such intimate knowledge about the Living God!