Are the Main Influences on Early Christology Jewish or Greco Roman?

Are the main influences on early Christology Jewish? Or are they Greco Roman slash pagan? This has been one of the big debates we have. In my own mind, I think we have elements of both there. The Old Testament is overwhelmingly the major influence on how people have thought about Jesus and verbalized their experience of Jesus. And so maybe clarify ontology. What do you mean by that briefly? And then where are the common mistakes with regard to contemporary readers misapplying ideas about God?