In "Journey to the West", Erlang Shen's magic power is not inferior to that of Wukong, so why is he not reused by the Jade Emperor?

It's not that Erlang Shen couldn't be trusted by the Jade Emperor, but that he himself disdained to obey the Jade Emperor's orders, and the Jade Emperor also felt that his nephew was a stain, so he just let it go. In "Journey to the West", we all have an impressive character. He is so powerful that even the senior brother Sun Wukong is no match for him. He can change in seventy-three ways, more than Sun Wukong.

He has three eyes, and the third eye can see through all illusions. This person is the Erlang God Yang Jian, but what is interesting is that the Erlang God who can tie with Monkey King, the invincible monkey in the heaven, is just an earthly immortal from Guanjiangkou. In fact, the reason is hidden in Sun Wukong's mocking words of Erlang Shen.

From Sun Wukong’s words, we know that Erlang’s name is Yang Jian, and he is the biological son of the Jade Emperor’s sister Yao Ji. Of course, Yao Ji was not married to an immortal god. She went down to earth privately and met Yang Tianyou, a mortal. Then the two developed feelings and formed the crystallization of love. This love and the crystallization of love are naturally not tolerated by the Jade Emperor, because there are regulations in heaven that fairies cannot be betrothed to mortals privately, otherwise they will violate the laws of heaven.

The existence of Yang Jian was a huge stain for the Jade Emperor, so he killed Yang Tianyou and Dalang of the Yang family, but Yang Jian escaped. The Jade Emperor pinned Yao Ji under the Peach Mountain again, and in order to save his mother, Yang Jian studied under the teacher and finally split the Peach Mountain and rescued his mother. Another theory is that his mother was killed by the Jade Emperor at the moment Yang Jian rescued her, so Yang Jian took up residence at the mouth of the Guanjiang River and "followed the instructions but not the propaganda." Erlang Shen, who lives in Guanjiangkou, is actually very nourishing. Not only does he enjoy the incense, but he also travels around. He seems to be much happier than the gods who serve in heaven.