Here's another good reason why Jesus was and is God and cannot have been a mere man.
The Father and I are one - (John 10: 27-30)
This verse is often cited in support of the divinity of Christ, that Jesus was, and is, God. They are not two, but one. The Jehovah’s Witnesses continue to argue that it only means they are one in purpose, nothing more. They reason that at John 17:21, 22:
Jesus prayed regarding his followers: “That they may all be one, and he added, “that they may be one even as we are one.” He used the same Greek word (hen) for “one” in all these instances. Obviously, Jesus’ disciples do not all become part of the Trinity. (Reasoning, 424)
Actually, they do.
First, His followers becoming collectively “one” is meant in the spiritual sense, similar to a husband and wife becoming one flesh (or a man and a prostitute), that is, one spirit, not two. “… Do you not know that he who is joined to a harlot is one body? For “The two,” says he, “will be one flesh. But he who is joined to the Lord is one spirit” (1 Corinthians 6:16, 17).
Secondly, the glorified believer eventually does become folded into the Trinity, which is the only means by which he or she can attain heavenly immortality. Jurgen Moltmann (1926 - ) explains it this way:
The unity of God is the communion of persons. The missions of the Son and the Spirit have brought creation within the Trinitarian process. At the end of time, all will be folded into the Trinity. The history of salvation is the story of the inclusion of creation into the perichoretic relationship (mutual indwelling) of the persons of the Trinity. (Oxford, 1213)
[T]he monarchy of the Father is perceived in the Trinity because everything in the history of salvation comes from him and strives towards him. To throw open the circulatory movement of the divine light and the divine relationships, and to take men and women, with the whole of creation, into the life-stream of the triune God: that is the meaning of creation, reconciliation and glorification. (Trinity and the Kingdom, 178)
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