The Simplicity of Scripture alone

The Bible alone is God's word. The Bible speaks of what content it teaches. All Scripture points to Christ alone. Peter says even the prophets testify of Christ, Acts 10:42-43. Also one can see how the apostles and deacons handled the OT in Acts 2 and 7. Not only in Acts but the Gospels as well. Jesus says if you had believed Moses, then you would had believed in Him too for Moses speaks of Christ, John 5:46. One of the very things that Christ did after he was raised from the dead was to show his disciples how the Scripture must be fulfilled and testify of Christ, Luke 24:25-27. Certainly the Bible is not complex but is simple. It is not Scripture that confuses people but the minds of men who are sinful that do so. Who can free us from such state? As the Apostle says in Romans 7 it is Christ alone.

Scripture alone is the testimony used

"But the best of human testimonies are an ill medium to testify to the truth of the Gospel, because the Gospel is all built upon Divine Revelation, and thus it needs not to receive testimony from men." -Joseph Hussey, God's operations of Grace, pg. 13

How to know?

"CRITIAS: 'Here then, Socrates, is the plan we have made to entertain you. We thought that Timaeus, who knows more about astronomy than the rest of us and who has devoted himself particularly to studying the nature of the universe, should speak first, and starting with the origin of the cosmic system bring the story down to man.'" - Plato, Timaeus, pg. 40

Of course apart from Revealed truth no one knows God. Who can pry into the mind of God? No one. God alone reveals secrets. The history of worldly education is that it is done apart from God and His word. Instead man has endeavored to know the hidden things by what he sees on earth. The grave question to ask is how do you know? The epistemic question is important in knowing anything at all. How does one derive his or her knowledge of the universe, what Method is used to gain knowledge? The Christian knows truth by the word of God and by faith we know that God created the universe.

George Berkeley to be sure was an empiricist. If we are only limited to what our eyes are capable of seeing then we would not truly be able to understand or know anything at all. We couldn't make any judgment as to the truth of one religion or philosophy from another. How do we know truth? We know it based on Scripture alone anything else simply reduces itself to skepticism. The Bible alone is the word of God.

What to teach? The Bible alone is the word of God

Just considering what Genesis 37 says truth is not what others think or how others perceive you but it is what God has revealed in his word. Though a mountain of people are against you the standard is the Bible alone; the word of God. In it God shows us what is truth.

Without revelation there are no ethics

"Ethics depends on revelation, and more emphasis should be placed on the necessity of revelation. A God who told man nothing would not be a satisfactory basis for ethics." - Gordon H. Clark, A Christian Philosophy of Education, pg 109

God's thoughts are not our thoughts but that does not mean we cannot think God's thoughts after Him

"As for Deuteronomy 29:29, Matthew 11:27, Luke 10:22, and John 1:18, 6:46 (see v. 45), these verses actually teach that human beings can know God and his thoughts truly to the degree that he reveals himself in his spoken word. Finally, Isaiah 55:8-9 far from depicting 'the gulf which separates the divine knowledge from human knowledge,' actually holds out the real possibility that people may know God's thoughts and urges them to turn away from their own thoughts and to learn ...God's thoughts from him. In 55:7 God calls upon the wicked man to forsake his way and thoughts. Where is he to turn? To the Lord, of course (55:6-7). Why should he forsake his way and thoughts? 'Because,' says the Lord, 'my thoughts are not your thoughts, neither are your ways my ways' (55:8). The entire context, far from affirming that God's ways and thoughts are beyond the capacity of humans to know, on the contrary, expressly calls upon the wicked man to turn away from his ways and thoughts and to seek God's ways and thoughts. In doing so, the wicked man gains ways and thoughts which, just as the heavens transcend the earth, transcend his own. Far from teaching that an unbridgeable gulf exists between God's thoughts and our thoughts, these verses actually call upon the wicked man, in repentance and humility, to seek and to think God's thoughts after him." - Robert Reymond, A New Systematic of the Christian Faith, Pg. 101 2nd ed.

We can know God because we are made with the capacity to reason

To the pragmatist skepticism of modern religious world, therefore, the Bible is sharply opposed; against the passionate anti - intellectualism of a large part of modern Church it maintains the primacy of the intellect; it teaches plainly that God has given to man a faculty of reason which is capable of apprehending truth, even truth about God.
That does not mean that we finite creatures can find out God by our own searching; but it does mean that God has made us capable of receiving the information which He chooses to give. I cannot evolve an account of China of my own inner consciousness, but I am perfectly capable of understanding the account which comes to me from travellers who have been there themselves. So our reasoning is certainly insufficient to tell us about God unless He reveals Himself; but it is capable (or would be capable if it were not clouded by sin) of receiving revelation when once it is given. - J. Gresham Machen, What Is Faith?

God speaks only truth

"From eternity to eternity, God expresses the entire fullness of his infinite mind and hears his own word. It is undoubtedly this truth that underlies the conception of the divine Wisdom in the Old Testament and the divine Word (Logos) in the New Testament. The Word which God addresses to himself from eternity to eternity is the Son, who is always 'with God' and essentially is God (John 1:1). Now it pleased God according to his eternal good pleasure to speak concerning himself outside of himself, to let his word proceed outside of himself (ad extra). It should be emphasized that this is not an act of necessity, but of sovereignty, of sovereign freedom, determined by his sovereign eternal counsel." - Herman Hoeksema in Reformed Dogmatics

The Bible alone as the Axiom

"Now, I agree that science, botany, and especially physics, is constantly changing and can never reach fixed truth. But Scripture gives us fixed truth, and since God gave it to us, it seems improper to predict that we shall never understand it." - Gordon H. Clark, The Holy Spirit

Hume's attack on the empirical arguments for God's existence

"It was David Hume who first among the moderns formulated empiricism as the all-inclusive criterion of truth and applied it to theological assertions with an agnostic outcome. Hume's theory struck hard at the Thomist case for Christian theism, which, in contrast to the Scriptures, rests its argument on empirical considerations rather than divine revelation. Hume insisted that effective scientific inquiry is thwarted unless finite effects are correlated with equivalent causes only, rather than with an infinite cause; moreover, he denied any objective status to causality in nature. The Humean assault on Christian theism is therefore specially directed against the Thomistic contention that the existence of God, and the existence and immortality of the soul, are logically demonstrable simply through empirical considerations independent of divine revelation. Hume's contention was that those who profess theological beliefs on empirical grounds have no right to such believes unless they produce requisite perceptual evidence, and that in the absence of demonstrative empirical proof, belief is unreasonable."- Carl F. H. Henry, God, Revelation, and Authority