Answer: This is very easy to distinguish. Christ is God in the flesh, God’s Spirit actualized as flesh. It is not that God’s Spirit descended upon Him afterward. Christ was born that way; He was Christ from the moment He was born. He was born the Christ and will forever be the Christ. If one’s not born that way, then he never will be. Just like the Lord Jesus was Christ from birth, not only after the Holy Spirit descended upon Him. When the Lord Jesus was baptized, the Holy Spirit descended upon Him like a dove. A voice from above said: “This is my beloved Son, in whom I am well pleased” (Matthew 3:17). This is the testimony of the Holy Spirit, to let people know that the Lord Jesus is incarnate God Himself. From that moment, the Lord Jesus officially began fulfilling His ministry for the Age of Grace. Almighty God incarnate in the last days expresses truths to testify that He is the Christ, He is God’s incarnate flesh. Christ’s essence is the truth, the way, and the life. Therefore, when Christ comes to work He will surely express truths, whereas those false Christs who proclaim that God’s Spirit descended upon them cannot express any truths whatsoever. This is sufficient to prove that they are evil spirits impersonating Christ to deceive people. Therefore, those false Christs who falsely claim that God’s Spirit descended upon them are actually all possessed by evil spirits. This is the fact of the matter. Just as Almighty God says: “There are some who are possessed by evil spirits and cry out vociferously, ‘I am God!’ Yet, in the end, they are revealed, for they are wrong in what they represent. They represent Satan, and the Holy Spirit pays them no heed. However highly you exalt yourself or however strongly you cry out, you are still a created being and one that belongs to Satan. … You are unable to bring forth new paths or to represent the Spirit. You cannot express the work of the Spirit or the words that He speaks. You are unable to do the work of God Himself, and that of the Spirit you are unable to do. The wisdom, wonder, and unfathomability of God, and the entirety of the disposition by which God chastises man—all of these are beyond your capacity to express. It would therefore be useless to try to claim to be God; you would have only the name and none of the substance. God Himself has come, but no one recognizes Him, yet He continues on in His work and does so in representation of the Spirit. … He is the incarnate flesh of the Spirit of God; He represents the Spirit and is approved by the Spirit. If you are unable to make way for a new age, or to bring the old to an end, or to usher in a new age, or to do new work, then you cannot be called God!” (The Word, Vol. 1. The Appearance and Work of God. The Mystery of the Incarnation (1)).

Someone isn’t Christ just because they say so. If one cannot express all truths to judge and save mankind, if one cannot perform God’s judgment work of the last days, or begin a new era and end an old era, then no matter how much he self-proclaims to be Christ he is still an impostor. Christ incarnate of the last days—Almighty God, expresses all truths to judge and cleanse man, performs the work of judgment beginning from the house of God, ending the Age of Grace and beginning the Age of Kingdom. Almighty God’s words are all expressions of God’s disposition and what God has and is. It is the reality of life that all mankind should be equipped with. It can resolve all the problems of corrupt man’s resistance of God and betrayal of God. For our understanding God’s work and His disposition and essence, it is of extreme importance and a very precious thing. Almighty God has revealed all the mysteries of God’s 6,000-year management plan and the inside story and essence of God's three-stage work, and has also exposed how Satan corrupts mankind and how God step-by-step saves mankind, as well as the necessity and important meaning of God’s judgment work of the last days, how mankind can resolve their sinful nature and break free from Satan’s influence to achieve salvation, how they can become someone who carries out the will of the heavenly Father, what kind of people God saves and what kind of people He eliminates, what kind of person can be brought up into the kingdom of heaven, how to separate good and evil, how God determines each type of person’s ending, and so forth. All truths and mysteries that involve man’s salvation and perfection have been opened up by Almighty God to mankind. This fulfills the Lord Jesus’ prophecy: “I have yet many things to say to you, but you cannot bear them now. However, when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatever he shall hear, that shall he speak: and he will show you things to come” (Jhn 16:12-13). Almighty God’s work is the work of the Age of Kingdom, and also the work that ends this dark, evil old world. The work done by Almighty God and the truths He expressed completely prove that Almighty God is Christ of the last days, the second coming of the Lord Jesus.

—the movie script of Who Is He That Has Returned