Kane’s reference is the Brotherhood of Nod from the Command & Conquer Game series

Command & Conquer (C&C) is a real-time strategy (RTS) video game franchise, first developed by Westwood Studios. The first game was one of the earliest of the RTS genre, itself based on Westwood Studios' influential strategy game Dune II and introduced trademarks that followed in the rest of the series.

Brotherhood Nod is a religious-separatist organization, the main antagonist in the Tiberian universe. Its main goal is to oppose the power of the GDI and bring humanity into a new era, the era of Tiberium. It is led by Kane, a religious leader convinced of the divine nature of Tiberium.

The Brotherhood believes that in 1995 the Great Kane, prophet and father, predicted the fall to Earth of the Tiberium crystal. In 1995, the first samples of this holy crystal appeared on Earth, but the lying authorities and the GDI hid its appearance from us. It wasn't until 2045 that we were able to get samples of Tiberium, and another year later our prophet Great Kane returned, and then we started spreading Tiberium

When you enter the temple you become a follower, your job is to keep order in the temple of Kane the Great, and by the way, you perform your duties you will be promoted. Brother is the next step in the hierarchy, brothers help preachers and confessors. Next, you have a choice: preacher or confessor, they can also become a missionary. But only the best of the best become the head of the temple, that is, they become arch brothers.