Answer:
The core belief of Orthodox Jews is that they should follow in the ancient traditions of Judaism.
Step-by-step explanation:
Orthodox Judaism is one of the great branches of the Jewish religion today, along with conservative Judaism and reformist Judaism. It is distinguished from them by its rigorous adherence to Halakha, that is, the ancient and traditional rules of life and behavior of the Jewish religion. It lacks of a central doctrinal authority allowing some variation in practice.