τεῖχος

a wall

Definition

The Greek word τεῖχος refers to a wall, specifically a defensive or protective wall, most often of a city. In the New Testament, it consistently denotes a physical, man-made structure for security, such as the city wall of Damascus that Paul escaped from (Acts 9:25, 2 Corinthians 11:33) or the walls of Jericho that fell by faith (Hebrews 11:30). In Revelation, its meaning expands to describe the immense, glorious, and symbolic walls of the New Jerusalem, which are measured and described in detail (Revelation 21:12, 14-15, 17-18).

Biblical Usage

Τεῖχος is used nine times in the New Testament, primarily in historical narrative and apocalyptic literature. In Acts and 2 Corinthians, it describes a literal, physical barrier used in a dramatic escape story. In Hebrews, it references the famous walls of Jericho in a faith context. Its most significant usage is in Revelation 21, where it appears six times, shifting from a mere physical description to a rich, symbolic feature of God's eternal city, representing security, glory, and divine measurement.

Etymology

Derived from the Proto-Indo-European root *dheigh- (to form, build), τεῖχος is a primary Greek noun for a wall or fortification. It is related to the Greek verb τείχω (to build a wall) and is a cognate of the Latin 'fingere' (to shape or form) and the English 'dough'. Its core meaning of a constructed, protective barrier remained stable.

Semantic Range

Τεῖχος gains profound theological significance in Revelation, transforming from a simple physical barrier into a symbol of God's ultimate salvation and eternal security for His people. The walls of the New Jerusalem (Revelation 21) represent God's perfect protection, the inclusion of His people (symbolized by the gates named for the twelve tribes and apostles), and the immovable perfection of His eternal kingdom. Understanding this shift from literal to symbolic enriches the reading of Revelation, highlighting the theme of God replacing earthly, fallible defenses with His own glorious, unshakable presence.

In the ancient Greco-Roman world, a city's τεῖχος was its primary defense, essential for survival, identity, and civic pride. Its strength and height were matters of great importance. Unlike modern walls, which are often merely property boundaries, ancient city walls were massive, manned fortifications that defined the safe, civilized space of the πόλις (city) from the dangerous outside world. This context makes the falling of Jericho's walls a monumental act of God and the glorious walls of the New Jerusalem the ultimate fulfillment of true safety.

τοῖχος (toichos, G5109) — Typically an interior wall of a house or structure, not a massive city fortification. φραγμός (phragmos, G5418) — A fence, hedge, or barrier, often for enclosure or separation, generally less substantial than a τεῖχος.

Word Details

Scripture References