User blog comment:B214/Volume 21 info & spoilers/@comment-83.7.233.159-20160420144354/@comment-1359322-20160424083133

God never guarded an entire group on his own. He had the Seraphs to help him.

Besides any Angels that goes against his teachings become Fallen Angels. In a sense, the Fallen Angels exist because God can't lead all the Angels on his own.