Ancient Origin Tau is the last letter of the Hebrew alphabet and was used symbolically in the Old Testament. It was already spoken of in the Book of Ezekiel. “The Lord said to him. ‘Go through the city. Through Jerusalem, and put a mark upon the foreheads of the men who sigh and groan over the abominations. (Ez. 9:4).
The Tau is the sign placed upon the foreheads of the poor of Israel, it saves them from extermination. It was then adopted by the very first Christians, for a twofold reason. As the last letter of the Hebrew alphabet, it prophesied the Last Day. And had the same function as the Greek letter Omega as it appears in the Book of Revelation. “I am the Alpha and the Omega, the beginning and the end. To the thirsty I will give water without price from the fountain of the water of life … I am the Alpha and the Omega, the first and the last, the beginning and the end” (Rev. 21:6;22:13). The Christians adopted the Tau, because its form reminded them of the Cross. On which Christ was immolated for the salvation.
