Thrones

Simplicity, constantness, and firmness were some of the first angels created by God and have maintained their constant divinity and perfect in serving God.

Of the highest angelic class, caretakers of god's throne. Sentient but too divine and knowledgeable for a human soul and even most of the angels to communicate with. They can speak to others if they so choose but don't have much of a personality due to their enamorment with God.

Purification of Souls: Their highest function is one of purification after illumination by the Cherubim.

parent: Holy Angels

[1] The Celestial Hierarchies [ref]