The Belgic Confession (1561) is one of the confessional documents that comprise the “3 Forms of Unity” in the churches of the continental reformed tradition. This confession is the statement of faith, taking the reader through a brief but thorough (at least by today’s standards) treatment of the basic doctrines of the Christian faith.
Article 2 (of a total of 37 articles or heads of doctrine) deals with how God has made Himself known to us. It reads as follows:
“We know Him by two means: First, by the creation, preservation, and government of the universe; which is before our eyes as a most elegant book, wherein all creatures, great and small, are as so many characters leading us to see clearly the invisible things of God, even his everlasting power and divinity, as the apostle Paul says (Romans 1:20). All which things are sufficient to convince men and leave them without excuse. Second, He makes Himself more clearly and fully known to us by His holy and divine Word, that is to say, as far as is necessary for us to know in this life, to His glory and our salvation.”
According to the Belgic Confession, there are two “books,” so to speak, by which we know God. The first is what is often referred to as “general revelation.” This consists of the universe itself, including (as the Confession puts it) its “creation, preservation, and government.” In a sense, then, the Confession holds that both Creation and Providence (which is often defined as God’s powerful preserving and governing of all things – see Westminster Shorter Catechism Q.11). These things testify to God’s “everlasting power and divinity,” as both Psalm 19:1-6 and Romans 1:20 attest.
In his book, With Heart and Mouth (which is an exposition of the Belgic Confession), Daniel Hyde notes the limits of general revelation:
“The Confession follows the apostle in saying that this knowledge of God in creation, providence, and governance is of God as our creator. The content, then, of general revelation is not of God as redeemer but simply as the wise, eternal, powerful, and creative God that he is.” (p.57)
So the knowledge of God that we have in that “most elegant book” of nature is sufficient to render all of mankind without excuse for our sin and rebellion against our Creator. But the gospel is not to be found there. That is where the second book comes in, which is an actual book – the Bible. This is often referred to as “special revelation” (as opposed to or distinct from general revelation).
God reveals Himself “more clearly and fully” in Scripture (“His holy and divine Word”), so the Scriptures are primary. Our reading or understanding of the “book” of nature must be informed or guided by the Scriptures. And, most importantly, it is only in the Scriptures that God makes Himself known to us, not just as Creator, but also as Redeemer in Jesus Christ.