The seraphim are the angels of love, light, and fire. They are the highest
order of the hierarchy of choirs and serve God as caretakers of his
throne. Seraphim express their love for God by constantly singing his
praises. In Hebrew tradition the endless chant of the seraphim is
known as the Trisagion—Kadosh, Kadosh, Kadosh (Holy, Holy, Holy is
the Lord of Hosts, the whole earth is full of His Glory), which is considered
a song of creation and celebration. Because they are the closest
beings to God, they are also called “the burning ones,” for they are
aflame with their love.
The three choirs of the seraphim, the cherubim, and the thrones,
according to the medieval mystic Jan van Ruysbroeck, never take part
in human conflict but are with us when we are in peaceful contemplation
of God and experience a constant love in our hearts. They also
inspire humans to become inflamed with divine love.
While he was on the Isle of Patmos, St. John the Divine had
visions that revealed the angels Gabriel, Metatron, Kemuel, and
Nathanuel were among the seraphim.
Isaiah is the only one to speak of the seraphim in Hebrew Scriptures
(the Old Testament), when he recounts his vision of the flaming
angels above the Throne of God: “Each had six wings: two covered
the face, two covered the feet and two were used for flying.” Further
mention of the seraphim may be considered in Num. 21:6 when reference
is made to “fiery serpents.” According to 2 Enoch (an apocryphal
work) the seraphim have six wings and four heads and faces.
It is from the ranks of seraphim that Lucifer emerged. In fact, the
Fallen Prince was considered the angel who outshone all others until
his fall from Grace.