the Lord is Israel's God and is the only God
As stated before, possible verbal varieties in the translation amount to the same sense
I read it as Israel's god is the LORD(Jehovah) and the LORD(Jehovah) alone, i.e. don't worship any other gods other than Jehovah.
It is consistent with Deuteronomy 5:9 where God admits to being a God of "deep and sensitive" feelings. He is their god who brought them out of Egypt.
Am I wrong?