Orthodox Explained

Introduction: Beyond the Sunday School Answers

For many, Christian theology can feel like a settled, dusty subject, a library of ancient books filled with complex and unapproachable jargon. The core ideas—God, faith, salvation—often seem reduced to a set of simple answers learned in childhood, leaving little room for mystery or profound intellectual engagement.

But beneath this surface lies a set of dynamic, challenging, and often surprising ideas that powerfully confront modern assumptions about faith, God, and the nature of reality. Drawn from the deep wells of Orthodox Christian thought, these perspectives offer not easy answers, but a richer and more mysterious vision. This article is an exploration of five of the most impactful of these ancient beliefs, each one promising to expand your understanding of the divine.

1. You Can’t Define God—And That’s the Point.

While many people seek religion for definitive answers and intellectual certainty, Orthodox theology insists that God’s essence is fundamentally unknowable and incomprehensible to the human mind. This isn’t seen as a frustrating limitation or a failure of human reason, but rather as the correct and necessary starting point for any true knowledge of the divine. To attempt to define God is to limit the infinite, which is essentially impossible.

“We explain not what God is, but candidly confess that we have not exact knowledge concerning Him. For in what concerns God, to confess our ignorance is the best knowledge.”

This “apophatic” approach—describing God by what He is not—fosters a profound sense of humility. But it is not an admission of ultimate ignorance. Ancient Christian thought makes a crucial distinction between the comprehension of God’s essence (which is impossible) and the knowledge of Him (which is possible, though incomplete). This “apophatic” discipline clears the way for a different kind of knowing—a relational knowledge revealed by God Himself, which is partial yet true. As the Apostle Paul writes, “For now we see in a mirror, dimly, and I know in part” (1 Cor. 13:12). The goal, then, is not intellectual mastery but a relational encounter with a God who is infinitely greater than we can define, but whom we can truly know as He reveals Himself.

2. Faith Isn’t Just Believing That God Exists, but Believing In Him.

In modern language, “faith” is often treated as simple intellectual assent—believing that a certain fact or proposition is true. Ancient Christian thought sees this as a profound misunderstanding. St. Gregory the Theologian clarifies the distinction: “It is not one and the same thing ‘to believe in something’ and ‘to believe something.’ We believe in the Divinity, but we simply believe any ordinary thing.” Believing that God exists is a matter of the mind; believing in Him is a “mystical revelation in the human soul” that involves the entire person. It is an act of the heart that includes love, veneration, reverence, and humility, becoming the living bond between heaven and earth. True faith is not just acknowledging God’s existence, but actively striving towards Him.

This transforms faith from a cold, abstract concept into a dynamic, mutual relationship of profound love. St. John Chrysostom captures this intensely personal and all-encompassing communion by having Christ speak directly to the believer:

“I am a father for you, and a brother, a bridegroom, and a home, a nurse and a dress, a root and a cornerstone. Whatever you want I am for you. I don’t want you to be in any need. I will serve you, because I came not to be served but to serve. I am a friend, and a member, and a head, and a brother and a sister, and a mother. I am everything for you. Only be in contact with me… You are everything to me, a brother and a co-heir, a friend, and a member of my body. What more do you desire?”

This perspective re-frames the entire life of faith. It is not about adherence to a list of doctrines, but about entering into a living, breathing communion with a God who offers Himself completely to humanity.

3. The Same Christ Who Offered Grace Also Gave the Law on Sinai.

A common but mistaken idea presents a stark contrast between an “angry Old Testament God” of Law and a “loving New Testament Jesus” of Grace. This creates a false dichotomy, suggesting a change in God’s character between the two testaments.

The Church Fathers directly counter this by asserting that Christ, as the pre-incarnate Son of God, was the very one who gave the Law to Moses on Mount Sinai. In their understanding, “Christ is the Lawgiver in both Old and New Testaments.” This continuity is powerfully illustrated on the Mount of Transfiguration, where “Moses and Elijah appeared with Christ… and they conversed with Him as friend with friend.” The presence of Moses shows Christ as the fulfillment of the Law, and the presence of Elijah shows Him as the fulfillment of the Prophets, all in perfect harmony.

The implication of this is profound: Law and Grace are not contradictory forces from two different divine personalities, but complementary gifts from the same Divine Person. The Law was given to “make sin known” and to renew humanity’s dulled conscience, thereby leading people to repentance. Grace comes from the Lawgiver Himself, who became incarnate not to abolish the Law but to heal, forgive, and fulfill everything the Law pointed towards.

4. The Holy Trinity Isn’t a New Testament Invention.

The doctrine of the Holy Trinity—one God in three Persons—is often considered one of the most complex and uniquely New Testament Christian beliefs. However, the Church Fathers taught that this mystery was not invented by the Apostles but was revealed in a “veiled way” or “in subtle ways” throughout the Old Testament.

Several key examples illustrate this hidden revelation:

• In Genesis 1:26, when creating humanity, God speaks using plural pronouns: “Let us make man in our image.” The Fathers understood this as an intra-Trinitarian conversation.

• In Genesis 11:7, just before the division at Babel, the Lord again uses the plural: “Let us go down, and there confound their language.”

• In Genesis 18:1-3, Abraham is visited by “three men” at the oak of Mamre. Despite seeing three, he addresses them in the singular as “My Lord.” Blessed Augustine reflected on this, writing that Abraham “understood the mystery of the Trinity, and having bowed down to one, he confessed One God in Three Persons.”

From this perspective, the New Testament does not introduce a new concept of God. Rather, it fully and plainly reveals the mystery of the Triune God that was woven into the fabric of scripture from the very beginning. The Baptism of Christ, where the Father speaks from heaven, the Son is in the water, and the Spirit descends as a dove, is the ultimate “Theophany,” (a manifestation of God) in which the God who was always Three-in-One is made known to the world.

5. Pentecost Heals the Division That Began at Babel.

The Old Testament contains a powerful story of human division. In the book of Genesis, humanity, united by a single language and driven by pride, attempts to build the Tower of Babel to reach the heavens. As a result of this arrogance, God confused their languages and scattered them across the earth, creating division and misunderstanding.

The Feast of Pentecost, described in the book of Acts, presents the grand reversal of this event. Here, the disciples are gathered when the Holy Spirit descends upon them in the form of “tongues of fire.” But instead of causing confusion, this divine intervention creates profound unity and understanding. People from many different nations, speaking diverse languages, all hear the Apostles’ message in their own tongue.

A hymn for the Feast of Pentecost makes this connection explicit, revealing a beautiful symmetry in God’s plan for salvation:

“Once, when He descended and confounded the tongues, the Most High divided the nations; and when He divided the tongues of fire, He called all men into unity; and with one accord we glorify the All-holy Spirit.”

This provides a hopeful vision of God’s ultimate purpose—not just to save individuals, but to actively heal the divisions of the entire human family, gathering all people back into a unified accord of worship.

Conclusion: Entering the Mystery

These five beliefs offer a glimpse into a theology that is at once more mysterious and more deeply relational than often assumed. They present a God whose essence is beyond our definition but whose love is intensely personal; a God who is consistent in His purpose from the first pages of scripture to the last; and a God who is actively working to bring unity out of our human-made divisions.

This vision invites a different kind of spiritual posture, moving us away from a demand for simple certitude and toward humble wonder. It leaves us with a compelling question: What if the purpose of faith isn’t to solve a puzzle and find all the answers, but to receive an invitation to step into a lifelong relationship with a God who is infinitely greater than we can imagine?