Wow. Just . . . wow. That is so relevant to the subject being dealt with.
I guess those "unbelieving Jews" are just out of luck that HaShem directly gave them the Torah 3300 years ago instead of waiting for some adulterated translation with a "new testament" stuck onto it.
It is relevant since the article above states Jews and Christians both believe in the same Yahweh.
Since Yahweh reveals Himself as a Triune God, anyone rejecting the Trinity rejects Yahweh.
As Jesus told the Pharisees in John 8, unless they believed in him, they would die in their sin. In 1 John, we are told if you deny the Son, you don’t have the Father.
You can talk about HaShem all you want, but if you reject Jesus Christ, HaShem rejects you.
They are “unbelieving Jews”. They killed the Son of God, and to this day don’t acknowledge it.