Our declaration: "Yehovah is our god, Yehovah is one." -- Deuteronomy 6:4
This is actually how the most important jewish prayer starts, the Shema Yisrael. But of course the rabbis have to twist it, so their version is "The LORD is our God, the LORD is one." They refuse to say Yehovah's name. By including Yehovah's name in our declaration, we eliminate followers of Judaism.
Note that the exact pronunciation of the name doesn't matter. You can use "Yahweh" just as well. No one really knows which is correct, so any reasonable name is fine.
Saying that "Yehovah is our god" is just declaring support for the Old Testament. It is interesting to compare this to other religions like Islam. But saying that "Yehovah is one" is actually more profound because this is the basis of inductive reasoning that makes science possible. The assumption here is that there is one consistent set of forces acting across time and space, and therefore controlled experiments can be used to identify general truths.