It also reminds of a fantasy author, I think it was Rothfuss, listing Moses as one of the archetypal wizards. Depending on the translation, Moses had a staff and Aaron had a rod. Both were involved in miracles. https://en.wikipedia.org/wiki/Aaron%27s_rod. https://en.wikipedia.org/wiki/Staff_of_Moses. Staves and rods were used as symbols of power and authority, probably because of the Bible, in European history. All these things make it fitting that they would be used as instruments of power in a fantasy series.
The LORD is my shepherd; I shall not want.He maketh me to lie down in green pastures: he leadeth me beside the still waters.He restoreth my soul: he leadeth me in the paths of righteousness for his name's sake.Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me.Thou preparest a table before me in the presence of mine enemies: thou anointest my head with oil; my cup runneth over.Surely goodness and mercy shall follow me all the days of my life: and I will dwell in the house of the LORD for ever.
I liked the fact that Elaine made fun of Harry in White Knight for going with the penis centric foci when she was putting on her gear.
I think it was Summer Knight. It may have been both.@Avernite: I did catch The_Sibelis's reference. It was pretty explicit.