OOC, Ebionism had two different sects of beliefs.
one had a Christian approach.
the other was more Gnostic in approach.
but first, lets go over what Ebionism is... Ebionism was a Jewish Christian sect in the first century. While they did regard Jesus as the Messiah, they did heavily insist on on the continuation of following the Jewish Law and circumcision. these people rejected Paul because they didn't understand that Christ came to fulfill the Law. Peter was intimidated by these people because they probably still had some influence on Jewish people and Jewish law.
the other side of Ebionism rejected Jesus as Christ all-together. Because of the belief of the inherent evilness of the flesh, two views of Jesus were taught; 1.) he appeared as a flesh figure, but never touched the ground, kinda like a ghost creature, and 2.) the "entity" of Christ descended on him when he was baptized, and left him when he was crucified, giving the rise to the belief that the essence of Christ is in all of us, and that any of us can become Christ... you see that teaching in a lot of new age movements.