The trouble is you haven't the remotest knowledge of the history of Christianity to say what is and what isn't the case. There is archaeological evidence to show the cross was in use before the New Testament was completed, you just ignore it.The cross used by the churches of Christendom has not the remotest connection with Christianity.
And what about the Eucharist? Your tradition has absolutely no connection with the Eucharist, and that is at the very heart of real Christianity.
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It is instead a sacred symbol belonging to ancient pagan religions, religions that the God of truth abhorred and against which he warned the nation of Israel. (Deut. 7:16, 25, 26)
The Cross is an ancient and sacred symbol in many cultures. Why? Because man is not totally blind to the truth, and man has always sought God.
The sun is a sacred symbol. Water is a sacred symbol. Bread is a sacred symbol ... in fact often pagan man saw God in everything, and was much more religious than many assume, and in all his ignorance, was perhaps more loved of God than those who go round knocking on people's doors.
But Christ is the Word made flesh (something you deny), 'a new and better way' and as St Paul said: "What therefore you worship, without knowing it, that I preach to you" (Acts 17:23) ... Christ is the light that illuminates that which man seeks in veils and in vestiges, in shadows and semblances ...
Wherever man seeks that which is real, and good, and true, God will find a way to talk to Him, and it is in this dialogue that his sacred signs are born.
Yes, I reject the Baals of old because God has revealed Himself in His only-begotten Son ... but Abraham worshipped God under the name of El Shaddai, which means "God of the mountains," and was a pagan diety, a divine name of the tribal god of Mesopotamian culture.
It's what's in the heart that counts, not what's on the lips.
Thomas