Servant19,
Your revision to the wiki statement brings up some additional problems. Catholics have no problem saying that God (not just the Father, but the whole Trinity) is often addressed by titles and attributes such as All-Powerful and All-Loving. To reduce these titles and attributes to just the Father, would actually lessen the truth, not increase it.
Likewise, to say that God is single (or one) and has no equal, is not a problem to us. We believe that God is one, and there are no other equal gods besides Him. Even saying that the Father is single (or one) is not a problem, since He is only one of the Trinity, but it can become a problem if we were to additionally say that the Father has no equal.
Catholics believe that the Father, Son, and Holy Spirit are all equal in Divinity. Now, in the order of eternal generation and eternal procession, the Father is 1st, the Son is 2nd, and the Holy Spirit is 3rd, so only in this sense, in the sense of order, can the term inequality be applied, but not in the sense of one being more or less God than the other.
In addition to what Steve wrote, here are some further comments:
The basic answer to the first question is that we believe these things about Jesus, and only Jesus, is because this is what has been handed down to us by Jesus, His Apostles and their successors (the Church). Christians have been warned ahead of time not to fall for other “christs”, other “gospels”, other “spirits”, and other “prophets”. There are several passages in Scriptures that point this out:
“Take heed that no one leads you astray. For many will come in my name, saying, `I am the Christ,’ and they will lead many astray” (
Matt. 24:4-5).
“But even if we, or an angel from heaven, should preach to you a gospel contrary to that which we preached to you, let him be accursed” (
Gal. 1:8)
“Beloved, do not believe every spirit, but test the spirits to see whether they are of God; for many false prophets have gone out into the world. By this you know the Spirit of God: every spirit which confesses that Jesus Christ has come in the flesh is of God, and every spirit which does not confess Jesus is not of God” (
1 John 4:1-3).
So, with regards Islam for example, Muhammad taught that Jesus was not the Son of God Incarnate. To us, this teaching is another “gospel”, another “spirit”, and does not come from the Spirit of God. Muhammad, therefore, can not be a messenger, or prophet, or ultimately a Manifestation of God like how Jesus is a Manifestation of God. A true Manifestation of God can not teach one thing in one era, and then turn around and teach the complete opposite in another era.
As to your second question, I’ll just borrow Steve’s statement above: “He made the claim and proved the claim”. Ultimately, the resurrection of Jesus proved all His claims, and so He is the only Man that can ever be considered to be the one and only Manifestation of God. None of the other men whom you consider as Manifestations of God resurrected from the grave, and that’s because they were simply men and nothing more.
God bless,
Rony