Investiture of the Gods!
In the Sealing God Tribulation, fatal Immortal Demons are enlisted in the Investiture of the Gods as gods of various regions.
Of course, saying it's an enlistment is just a euphemism—it's essentially a form of unusual confinement. Without a physical body, the sealed gods' Cultivation can be said to be forever stalled, and whoever controls the Investiture of the Gods also controls these gods' lives.
For instance, figures like Zhao Gongming from the Jie Sect are gods on the Investiture of the Gods and are governed by the Jade Emperor. However, due to the doctrinal conflict between the two sects, the Jade Emperor has never used the Investiture of the Gods to coerce Zhao Gongming and others.
It's not that the Jade Emperor doesn't want to, but since Zhao Gongming and others are disciples of the Jie Sect, enslaving them would certainly offend the Heavenly Sect Master. This is also why the Jade Emperor seldom employs the Investiture of the Gods.
