Words...

The Seraph or Serapim make their first Christian appearance in the Book of Revelation iv. 6-8, where they are forever in God's presence and praising Him constantly: "Day and night they never stop saying: 'Holy, holy, holy is the Lord God Almighty, who was, and is, and is to come.'"In medieval Christian neo-Platonic theology, the Seraphim belong to the highest order, or angelic choir, of the hierarchy of angels. They are said to be the caretakers of God's throne, continuously singing Kadosh, Kadosh, Kadosh, i. e. "holy, holy, holy"—cf. "Holy, Holy, Holy is the Lord of Hosts, the whole earth is full of His Glory" (Isaiah 6:3). This chanting is referred to as the Sanctus.

This is my favorite word and its function. What I got out of it is that a Seraph is the highest ranked angel the Army of God.