Passover Fulfilled; Confession Made

"When the hour had come, He sat down, and the twelve apostles with Him. Then He said to them, 'With fervent desire I have desired to eat this Passover with you before I suffer, for I say to you, I will no longer eat of it until it is fulfilled in the kingdom of God.' ". (Luke 22:14-16)

"Now as they said these things, Jesus Himself stood in the midst of them, and said to them, 'Peace to you.' But they were terrified and frightened, and supposed they had seen a spirit. And He said to them, 'Why are you troubled? And why do doubts arise in your hearts? Behold My hands and My feet, that it is I Myself. Handle Me and see, for a spirit does not have flesh and bones as you see I have.' When He had said this, He showed them His hands and His feet. But while they still did not believe for joy, and marveled, He said to them, 'Have you any food here?' So they gave Him a piece of broiled fish and some honeycomb. And He took it and ate in there presence. Then He said to them, 'These are the words which I spoke to you while I was still with you, that ALL THINGS MUST BE FULFILLED which were written in the Law of Moses and the Prophets and the Psalms concerning Me.' And He opened their understanding, that they might comprehend the Scriptures." 
(Luke 24:36-45)

"Beloved, do not believe every spirit, but test the spirits, whether they are of God; because many false prophets have gone out into the world. By this you know the Spirit of God: Every spirit that confesses that Jesus has come IN THE FLESH is of God, and every spirit that does not confess that Jesus has come IN THE FLESH is not of God. And this is the spirit of Antichrist, which you have heard was coming, and is now already in the world." (1 John 4:1-3)

Is it your understanding that simply THINKING that Jesus has come in the flesh will honor Him, or please God? Or, must this confession be made in those who think?

"Then He said to them, 'Thus it is written, and thus it was necessary for the Christ to suffer and to rise from the dead on the third day, and that repentance and remission of sins should be preached IN HIS NAME to all nations, beginning in Jerusalem. And you are witnesses of these things.’ “ (Luke 24:46-48) Necessary for the Christ! Necessary for the Christian, the body of Christ, by the Promise of the Father upon and within.