Relevant Words of God:
You must understand what things arise from God and what things arise from Satan. The things that arise from God cause you to become ever clearer about visions, and they cause you to get closer and closer to God, earnestly sharing love with brothers and sisters; you are capable of showing consideration toward God’s burden, and your God-loving heart does not abate; there is a road ahead for you to walk. The things that arise from Satan cause you to lose visions and all you had before is gone; you become estranged from God, you have no love for brothers and sisters and you have a hateful heart. You become desperate, you no longer wish to live the church life, and your God-loving heart is no more. This is Satan’s work and is also the consequence brought about by the work of evil spirits.
from “The Twenty-second Utterance” in The Word Appears in the Flesh
If it is the work of the Holy Spirit, man becomes ever more normal, and his humanity becomes ever more normal. Man has an increasing knowledge of his disposition, which has been corrupted by Satan, and of the essence of man, and he has an ever greater longing for the truth. That is to say, the life of man grows and grows, and the corrupt disposition of man becomes capable of more and more changes—all of which is the meaning of God becoming the life of man. If a way is incapable of revealing those things that are the essence of man, is incapable of changing the disposition of man, and, moreover, is incapable of bringing him before God or giving him a true understanding of God, and even causes his humanity to become ever more lowly and his sense ever more abnormal, then this way must not be the true way, and it may be the work of an evil spirit, or the old way. In short, it cannot be the present work of the Holy Spirit.
from “Only Those Who Know God and His Work Can Satisfy God” in The Word Appears in the Flesh