Seraphim

The seraphim (singular: seraph; Hebrew saraph, "burning one") are celestial beings appearing in Isaiah's vision of the heavenly throne room, the only extended description of them in Scripture: "I saw the Lord sitting upon a throne, high and lifted up... Above him stood the seraphim. Each had six wings: with two he covered his face, and with two he covered his feet, and with two he flew" (Isaiah 6:2). Two seraphim called to one another: "Holy, holy, holy is the LORD of hosts; the whole earth is full of his glory" — the trisagion that became central to both Jewish and Christian liturgy. One seraph then flew to Isaiah with a burning coal from the altar, touched his lips, and declared his guilt removed and his sin atoned for (Isaiah 6:6–7), enabling his prophetic commission.

The seraphim in this singular description are characterized by their burning holiness — their very name — their posture of perpetual worship before God's throne, and the paradox that even they must cover their faces and feet in the divine presence, indicating that the vision of God's full glory exceeds even the capacity of the highest angelic beings. Their proclamation — "the whole earth is full of his glory" — establishes the theological vision grounding Isaiah's entire prophetic ministry: God's holiness as the comprehensive reality that fills creation yet exceeds all creaturely comprehension. John's Gospel interprets Isaiah 6:9–10 as a vision of Christ's glory (John 12:41), reading the seraphim's trisagion as a witness to the pre-incarnate Son.