In the book of Deuteronomy, we meet the speaking God. "Has any people heard the voice of God speaking from the midst of the fire, and survived?" Mercy and grace meet here. This is, in its own way, a proto-gospel. Christopher Wright makes this comment concerning what happened at Sinai, saying what really mattered there was not that there had been a theophonic manifestation of God, but that there had been a verbal revelation of God's mind and will. Sinai was a cosmic audiovisual experience, but it was the audio that mattered. It is the audio that matters, for God has spoken.
If God has spoken, let me suggest several realities that should frame our thinking as Christians. First, if God has spoken, then we do know. And what we know is the highest and greatest knowledge any human ear can ever hear. No human ear deserves to hear God's voice, but by His grace, we hear it and we survive. But having heard it, we cannot feign ignorance. We cannot act as if we do not know. Francis Schaeffer, for instance, said that for the Christian who understands the doctrine of revelation, there is no real epistemological crisis. There is only a spiritual crisis. All that remains is whether we will obey.
Thus there is a firm basis to what we do here, because we know. We have an authority by which we preach, and an authority by which we teach. In every class, in every course, and in every church, what is spoken is spoken because we have heard. We are not making this up as we go along! And because we have heard, we cannot feign ignorance, and we are thus accountable for the hearing.
Secondly, if God has spoken, we know only by mercy. That is a good reminder for anyone who studies theology. There can be no pride in the knowledge of God, because everything we know about Him, we know by mercy. Carl F. H. Henry describes this so beautifully when he speaks of revelation as God's willful disclosure, wherein He forfeits His own personal privacy so that His creatures might know Him. We have no claim upon God. There is no necessity for Him to forfeit His own personal privacy.
Moreover, there is no way, as the Bible makes clear over and over again, that we could ever figure Him out on our own. He must speak, and He has. Dr. Henry said this in the second volume of God, Revelation and Authority: "If divine revelation in terms of speech means anything, it implies among other things that God need not have thus disclosed Himself. God might indeed have remained silent and incommunicative in relation to His creatures. His revelational speech to mankind is not an inescapable or inevitable reality. It is instead a demonstration of His own character. It is not to be likened to the mathematically quite predictable spurting of the geyser Old Faithful. Instead, like an enigmatic weather pattern, His performance cannot be charted in advance and in crucial ways. It is once for all rather than merely sporadic. Even God's extended and ongoing speech in general or universal revelation is moment by moment, precept by precept, a matter of voluntary divine engagement and addressed to mankind that carries ever and on the utmost urgency." God mercifully lets His people hear. It is all by mercy, and thus intellectual pride is the enemy of any true theological knowledge. There is nothing we can figure out. There is nothing we can discover. There is no "aha" moment where, in some theological laboratory, a new element is discovered. We know by grace and mercy.
Third, if God has spoken, then we too must speak. We preach and teach and speak, because God has spoken. Because God has spoken, we dare not remain silent. There is a task here; there is an urgency here. And so we teach and we preach and we speak, because we are to be the speaking people of a speaking God. The people of God are not to be marked by their silence, but by their speech. There is a command here to preach, of course, and a command here to teach. In Deuteronomy six, Israel is reminded of the responsibility of parents to teach children. Throughout the very fabric of Scripture, the teaching mandate is a constant. And of course, for the church, it is just as clear. As Paul writes in 2 Timothy chapter four, kerusso ton logon, preach the word! We are not just to have heard it, but we are to teach it and to preach it and to share it.
