Ask him if he knows that the name for GOD JEHOVAH was invented by a Spanish catholic Monk in the 13th Century.
This Spanish Catholic Monk translated the Hebrew Tetragrammaton `s 4 letters into Latin /English JHVH / YHWH
and added some vowels to those 4 letters and that`s why we today have JEHOVAH / YAHWEH for God`s name .
Is he also aware that the "Aid To Bible Understanding" first edition stated that they chose the name JEHOVAH because that was the most popular name for God in the world ?
Popular by whom ? Christendom of course who else is going to be using GOD`s name.
Centuries old churches have the name Jehovah engraved on them in Europe and here in Australia and elsewhere.
The JW religion lyingly said Christendom tries to hide the name of GOD and nothing could be further from the truth.
It is used widely in Christendom and has been for Centuries.