Blessed, indeed, are the people who know this God who is God blessed forever. It is true that God is God, and therefore he cannot be comprehended. The finite cannot comprehend the infinite; time cannot compass eternity. But there is a difference between knowledge and comprehension, and comprehension is not necessary for knowledge. Although in the very testimony that God is God the church confesses that God cannot be comprehended, she also proclaims that he is knowable, and that he is known. He is known because he has revealed himself. He has revealed himself not merely as god, but also as the Father of our Lord Jesus Christ, who loves his church with an eternal and unfathomable love; who reconciles his people to himself, not imputing their trespasses to them; who delivers them from the power of sin and death; and who gives them life eternal in the knowledge of himself.
We know God in Christ Jesus our Lord, and not merely with our head, intellectually, as theology knows him; we also know him with our heart, spiritually, so that we taste that he is good and the overflowing fountain of all good. We know him and have fellowship with him, and we hear him tell us that we are his friends, his sons and daughters. We know him, and in this knowledge we have eternal life. “This is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent” (John 17:3).
Let the church of Jesus Christ in the world clearly understand her calling and emphatically proclaim – always and everywhere – that God is God!
This is another quote from the very first message broadcast on the Reformed Witness Hour (celebrating 75 years in 2016!), “God is God”, based on Isaiah 43:12 (“Ye are my witnesses, saith the LORD, that I am God.”) and delivered by Rev. Herman Hoeksema, pastor of First PRC in Grand Rapids, MI.
Besides being published in individual leaflet form, this message was later published by the RFPA in book form, along with the other messages in this series on the doctrine of God and another on the doctrine of man that followed it. That book is titled Knowing God & Man (Reformed Free Publishing Association, 2006). The quote is taken from p.12.