How does one actually confirm that Almighty God is the returned Jesus?

 How does one actually confirm that Almighty God is the returned Jesus? 

The Answer from God’s Word:

First, He is able to open up a new age; second, He is able to supply the life of man and show man the way to follow. This is sufficient to establish that He is God Himself. At the very least, the work He does can fully represent the Spirit of God, and from such work it can be seen that the Spirit of God is within Him. As the work done by the incarnate God was mainly to usher in a new age, lead new work, and open up new circumstances, these few conditions alone are sufficient to establish that He is God Himself.

from “The Difference Between the Ministry of the Incarnate God and the Duty of Man” in The Word Appears in the Flesh

To study such a thing is not difficult, but requires each of us to know this truth: He who is God’s incarnation shall hold the substance of God, and He who is God’s incarnation shall hold the expression of God. Since God becomes flesh, He shall bring forth the work He must do, and since God becomes flesh, He shall express what He is, and shall be able to bring the truth to man, bestow life upon man, and show man the way. Flesh that does not contain the substance of God is surely not the incarnate God; of this there is no doubt. To investigate whether it is God’s incarnate flesh, man must determine this from the disposition He expresses and the words He speaks. Which is to say, whether or not it is God’s incarnate flesh, and whether or not it is the true way, must be judged from His substance. And so, in determining[a] whether it is the flesh of God incarnate, the key is to pay attention to His substance (His work, His words, His disposition, and many more), rather than external appearance. If man sees only His external appearance, and overlooks His substance, then that shows the ignorance and naivety of man. External appearance does not determine substance; what’s more, the work of God has never conformed with the conceptions of man. Did not the outward appearance of Jesus conflict with the conceptions of man? Were not His appearance and dress unable to provide any clues as to His true identity? Was not the reason why the earliest Pharisees opposed Jesus because they merely looked at His external appearance, and did not take to heart the words that He spoke? It is My hope that the brothers and sisters who seek the appearance of God will not repeat the tragedy of history. You must not become the Pharisees of modern times and nail God to the cross again. You should carefully consider how to welcome the return of God, and should have a clear mind of how to be someone who submits to the truth. This is the responsibility of everyone who is waiting for Jesus to return with the clouds.

from Preface to The Word Appears in the Flesh

The work being done at present has pushed forward the work of the Age of Grace; that is, the work under the entire six-thousand-year management plan has moved forward. Though the Age of Grace has ended, God’s work has made progress. Why do I say time and again that this stage of work builds upon the Age of Grace and the Age of Law? This means that the work of this day is a continuation of the work done in the Age of Grace and an advance over that done in the Age of Law. The three stages are tightly interconnected and each link in the chain is closely tied to the next. Why do I also say that this stage of work builds on that done by Jesus? Supposing that this stage did not build on the work done by Jesus, He would have to be crucified again in this stage, and the redemptive work of the previous stage would have to be done all over again. This would be meaningless. And so it is not that the work is completely finished, but that the age has moved forward and the level of the work has been raised even higher than before. It may be said that this stage of work is built on the foundation of the Age of Law and on the rock of Jesus’ work. The work is built stage by stage, and this stage is not a new beginning. Only the combination of the three stages of work may be deemed the six-thousand-year management plan. The work at this stage is done on the foundation of the work of the Age of Grace. If these two stages of work were unrelated, then why is the crucifixion not repeated in this stage? Why do I not bear the sins of man, but instead come to judge and chastise man directly? If My work to judge and chastise man and My coming now not by the conception of the Holy Spirit did not follow the crucifixion, then I would not be qualified to judge and chastise man. It is precisely because I am one with Jesus that I come directly to chastise and judge man. The work at this stage is built entirely on the work in the preceding stage. That is why only work of this kind can bring man, step by step, into salvation. Jesus and I come from one Spirit. Even though We are unrelated in Our fleshes, Our Spirits are one; even though the content of what We do and the work that We take on are not the same, We are alike in essence; Our fleshes take different forms, but this is due to the change in era and the differing requirements of Our work; Our ministries are not alike, so the work We bring forth and the disposition We reveal to man are also different. That is why what man sees and understands this day is unlike that of the past; this is so because of the change in era. For all that They are different in the gender and the form of Their fleshes, and that They were not born of the same family, still less in the same time period, Their Spirits are nonetheless one. For all that Their fleshes share neither blood nor physical kinship of any kind, it cannot be denied that They are the incarnation of God in two different time periods. That They are the incarnate fleshes of God is an irrefutable truth, even though They are not of the same bloodline and do not share a common human language (one was a male who spoke the language of the Jews and the other a female who exclusively speaks Chinese). It is for these reasons that They have lived in different countries to do the work that it behooves each one to do, and in different time periods too. Despite the fact that They are the same Spirit, possessed of the same essence, there are no absolute similarities at all between the outward shells of Their fleshes. All They share is the same humanity, but as far as external appearance of Their fleshes and the circumstances of Their birth are concerned, They are not alike. These things have no impact on Their respective work or on the knowledge that man has of Them, for, in the final analysis, They are the same Spirit and none can separate Them. Even though They are not related by blood, Their entire beings are in the charge of Their Spirits, which allocates to Them different work in different time periods, and Their fleshes to different bloodlines. Similarly, the Spirit of Jehovah is not the father of the Spirit of Jesus, and the Spirit of Jesus is not the son of the Spirit of Jehovah: They are one and the same Spirit. Just like the incarnate God of today and Jesus. Though They are not related by blood, They are one; this is because Their Spirits are one.

from “The Two Incarnations Complete the Significance of the Incarnation” in The Word Appears in the Flesh

Footnotes:

a. The original text reads “as for.”