CHRISTIANTY'S HISTORY & LOST GOSPELS OF THE HEBREWS

I'm gonna continue reading the interesting document I started in my last stream,
then checking out a lecture about the Lost Gospels of the Hebrews....

The Apostle Paul argued that Christians were not required to follow the law of Moses (including circumcision and keeping kosher) but many groups that continued to follow Mosaic law survived for many centuries. Although their scriptures have been lost, many fragments remain. What can we know about the lost gospels of the Hebrews, the Ebionites, and the Nazoreans?