Our Eternal Sibling

Our Greatest Brother is an uncommon epithet used to refer to Overseer. It contrasts with Our Greatest Husband which is for Underseer

Lambda
Our Greatest Brother is the second member of the tribunal, linked to the present day, and the Terrestrial Kingdom, and Mithra-Varuna/Vishnu, and God the Son (important distinction is that this son is considered a brother to the believer in Evolutionism, while the Omega is the believer's son)

He corresponds to the Individual puzzle