The Urantia Book Study Edition
Urantia Book 96:4.5 links to Old Testament References (KJV):
Fearful:
De 28:58
Mountain of Yahweh on fire:
Ex 19:18
Powerful:
Ps 29:4
Devouring fire:
Ex 24:17,
Is 29:6,
Is 30:27
Mighty, terrible:
De 7:21,
De 10:17,
Je 20:11,
Ne 9:32