[Amos]

I got you the info. I cant tell you what to do with it, its your mod. But Judaic mysticism advanced with Christian, feeding of each other, so its impossible to differentiate. Most of the angelic mithology comes from Judaic mysticism of Middle Ages not Christian one. Christian theologians simply adapted Judaic angels to Christianity.
Since your mod is about Tanah's Hebrews, there is no sources dealing directly with angels in that time period.