God’s incomprehensibility, so far from canceling out God’s knowability, rather presupposes and affirms it. The riches of God’s being—riches that surpass all knowledge—are in fact a necessary and significant component of our knowledge of God. The fact remains that God makes himself known to us in the manner and measure in which he reveals himself in his creatures.
Reformed Dogmatics Vol. 2: God and Creation John Bolt and John Vriend (Grand Rapids, MI; Baker Academic; 2004) p. 56.