Answer:
The fundamental belief of Judaism and Christianity referred to in the above statement is monotheism.
Step-by-step explanation:
- Both Judaism and Christianity can be said to have descended down of the same ideology regarding the existence of God.
- A single God religion is referred to as monotheistic religion. A monotheistic religion preaches that there is only one God who exists in a single original form. The God may have multiple disciples and messengers of his own, but God is only one.