According to Isaiah, each seraph in his temple vision had six wings.
Isaiah 6 describes the prophet seeing the Lord enthroned in the Temple. Seraphim stood above the throne, and each had six wings: two covered the face, two covered the feet, and two were used for flying. They called to one another, proclaiming the holiness of the Lord.
The vision deeply affects Isaiah. He recognizes his own unclean lips and those of his people, after which one seraph touches his lips with a live coal from the altar. Isaiah then responds to the divine question about who will go as a messenger by saying, “Here am I; send me.”
Seraphim are distinct from cherubim. Isaiah’s seraphim have six wings, while cherubim are described differently in passages such as Ezekiel 1 and 10. Later Christian art often combines or reinterprets these figures, but the six-winged description comes specifically from Isaiah 6.