Originally Posted by BigJohn
In the Talmud - Mas. Yoma 35b, it reads:
" AS IT IS WRITTEN IN THE TORAH OF MOSES THY SERVANT: FOR ON THIS DAY SHALL ATONEMENT BE MADE FOR YOU [TO CLEANSE YOU; FROM ALL YOUR SINS SHALL YE BE CLEAN BEFORE THE LORD]. AND THEY ANSWERED AFTER HIM: BLESSED BE THE NAME OF HIS GLORIOUS KINGDOM FOR EVER AND EVER!"
The footnote has an interesting note It reads:
"The priests and the people who stood in the Temple court and who, on hearing him pronounce the ineffable Name of God, prostrated themselves."
Which claims the Name of God was spoken by the Jews.
As noted on another thread, no Jew I know of denies that there was a time when the tetragramaton was used in every day speech.