Possibly one of the two covering Angels over the mercy seat?
One is Michael and the other is Lucifer (Satan) Ezekiel 28:13-15.
Michael is the only arch-angel that directly contends against Satan (Jude 1:9)
Daniel 10:13-21 Prince of the First Rank and Protector of Israel
Daniel 12:1 – At that time Michael, the great prince who protects your people, will arise
Revelation 12:7-9 describes a war in heaven in which Michael, being stronger, defeats Satan and casts him down to earth