Is the God "known by many names" - known?

I was listening to an interfaith prayer service honoring Dr. Martin Luther King Jr. this morning and a Rabbi prayed an interesting prayer. He prayed to "the holy one, who we know by many names". I assume he was referring to what most of us call God, but preferred not to use that word, maybe it would be seen as too exclusive? Is it meaningful or helpful to pray to God in this vague way?

God is known by many names in Bible and I assume this Rabbi would consider the Old testament texts to be true and sacred. However, I think it is completely misleading to make it sound as though we all are worshipping the same God just because we use the word God or a substitute a term like "the holy one". There is only one God, but if He has revealed Himself in the Bible, then any other idea of God that contradicts His self-revelation is a non-god. Even if you use the same name for God as other religions, the name becomes meaningless if it is being used in a way not consistent with How God describes Himself.

If we care about people's souls, wouldn't it be best to have respectful, open and honest discussions about the differences in what we mean by "God" and hopefully all come to knowledge of the truth? Attempts to make all religious beliefs equal are not without serious negative consequences -

1 Thess. 5:1 But concerning the times and the seasons, brethren, you have no need that I should write to you. 2 For you yourselves know perfectly that the day of the Lord so comes as a thief in the night. 3 For when they say, “Peace and safety!” then sudden destruction comes upon them, as labor pains upon a pregnant woman. And they shall not escape. 4 But you, brethren, are not in darkness, so that this Day should overtake you as a thief. 5 You are all sons of light and sons of the day. We are not of the night nor of darkness. 6 Therefore let us not sleep, as others do, but let us watch and be sober. (NKJV)

To say you believe in God, but suggest what you believe is no more valid than others who hold  contradictory beliefs is not loving and unifying talk, but inconsistent and dangerous talk. In an effort to bring peace between different faiths these do-gooders leave people in ignorance and at odds with the real God! If God is real and can be know, then coming to know the truth is infinitely more important than trying to fit in and not offend those of different beliefs! The "god known by many names" is not a god that can be known at all, if He has not spoken. If God has spoken, then He can be known and must be known, in a much more specific way than these interfaith events would dare portray Him!

"Scripture taken from the New King James Version. Copyright © 1982 by Thomas Nelson, Inc. Used by permission. All rights reserved."