How did King Jinghe die in Journey to the West? Why did the Jade Emperor have to kill him?

King Jinghe was beheaded by the Jade Emperor because he lost his temper with fortune teller Yuan Shoucheng and failed to meet the time, quantity and rainfall stipulated by the imperial edict.

Yuan Shoucheng asked him to ask Li Shimin for help, and Li Shimin promised to save him, but he was finally beheaded by Wei Zhi, the heavenly teacher on earth, in his dream. After his death, his soul has been rectifying Li Shimin. Finally, he took Li Shimin's soul to fight against the nether world. The nether world favors Li Shimin and releases him to the sun. King Jinghe's soul was forced into reincarnation by the ghost.