Article 7: Eighth and Ninth Century Heresies — Icons, Images, and Worship

Article 7: Eighth and Ninth Century Heresies — Icons, Images, and Worship

1. Historical Background

The eighth and ninth centuries (roughly AD 700–900) brought a controversy that shook the Byzantine Church for over a hundred years, in two separate waves. The Byzantine Empire faced serious military and political pressure during this period, including from the rapidly expanding world of Islam, which strongly rejected religious imagery. Some in the Byzantine world came to believe that the Empire's troubles were a sign of God's displeasure at what they saw as idol worship — the veneration of icons, the painted images of Christ, Mary, and the saints widely used in worship.

In AD 726, Emperor Leo III began actively opposing the use of icons, a policy intensified under later emperors such as Constantine V. Icons were destroyed, and monks and church leaders who defended their use were persecuted, sometimes severely.

2. Main Heresies of This Period

• Iconoclasm ("icon-breaking") — the teaching and imperial policy that religious images should not be made or venerated, treated as a violation of the biblical command against idol worship. This was not simply a difference in taste about church decoration; it became a formal doctrinal position, at times enforced by the state and supported by some bishops.

3. Why This Teaching Was Wrong

From Scripture:

• John's declaration that the Word became flesh and lived among us (John 1:14, NIV) is central here: the eternal, invisible God became visible and touchable in Jesus Christ.
• Paul calls Christ the image — in Greek, literally the icon — of the invisible God (Colossians 1:15, NIV), showing that Christ Himself is God's own perfect "icon" made visible in human form.
• Long before the Incarnation, God Himself commanded Moses to make golden images of cherubim for the Ark of the Covenant (Exodus 25:18–20, NIV) — showing that the biblical command against idolatry was never a blanket ban on all sacred imagery, but a ban on worshipping images as gods.
• The Son is described as the exact representation of God's being (Hebrews 1:3, NIV), reinforcing that God has made Himself genuinely visible and representable in Christ.

From the teaching of the early Church: Theologians such as St John of Damascus argued that the Old Testament's caution against images applied to a time before God had become visible in human flesh. Once the Word truly became man, refusing to depict Christ in an icon came dangerously close to denying that the Incarnation had truly happened at all — echoing the very Docetist error the Church had rejected centuries earlier.

Why it was dangerous: At its root, the real issue was the crucial distinction between worship, which belongs to God alone, and veneration or honour, which can rightly be given to an icon — an honour that, as St John of Damascus explained, passes through the image to the person it represents, not to the paint or wood itself. Iconoclasm blurred or ignored this distinction, treating all sacred images as idols and, in doing so, risked undermining the Church's confession that God truly became visible in Christ.

4. How the Church Responded

• St John of Damascus, writing safely from outside Byzantine territory under Muslim rule in Damascus, produced influential treatises defending the proper use of icons and carefully explaining the difference between worship and honour.
• In AD 787, the Second Council of Nicaea, convened under Empress Irene, restored and formally affirmed the veneration of icons, articulating this same distinction as official Church teaching.
• Iconoclasm resurged for a second period between AD 814 and 843, but was finally and permanently resolved under Empress Theodora in 843 — an event still celebrated every year in Eastern Christian tradition as the "Triumph of Orthodoxy," marked on the first Sunday of Great Lent.

5. What Happened Later

• Icon veneration became a firmly established and treasured part of Eastern and Oriental Christian devotional life, continuing without interruption to this day.
• A related instinct against sacred images would resurface centuries later during the Reformation, when some reformers once again rejected religious images out of similar concerns, discussed later in this series.

6. Lesson for Christians Today

• Sacred art can be a genuine testimony to the reality of the Incarnation — that God truly became visible and human in Christ — rather than a form of idolatry, as long as the crucial distinction between worship and honour is kept clear.
• The temptation runs in two directions: confusing an image with God Himself on one side, or rejecting all physical, visible expressions of faith on the other. The Church's answer has always sought the balanced middle path.
• Long, painful controversies can still end in clarity and peace when the Church is patient enough to work them through carefully.

A Coptic Orthodox note: Because Egypt had already come under Islamic rule before this controversy began, the Coptic Church was not directly caught up in the Byzantine iconoclast crisis. Coptic Christians maintained an unbroken and distinctive tradition of icon painting and veneration throughout this period, a tradition that remains a rich and treasured part of Coptic Orthodox worship and church architecture today.

7. Short Summary

• Iconoclasm rejected the making and honouring of sacred images, treating icons as idolatry.
• Scripture shows that God commanded certain sacred images even in the Old Testament, and that Christ Himself is called God's own "image."
• The Incarnation means God has truly become visible in Christ, making it fitting to depict Him.
• St John of Damascus clarified the key difference between worship, due to God alone, and honour, which can rightly be shown to icons.
• The Second Council of Nicaea (AD 787) restored icon veneration as Church teaching.
• The controversy was finally resolved in AD 843, still celebrated as the "Triumph of Orthodoxy."
• The Coptic Church maintained its own continuous icon tradition throughout this entire period.