Well it appears my forum account has corruptions so I can't respond to certain threads or open most DMs
Partially correct -- the target audience of Paul were the gentiles, and the target audience of the apostles were the Jews. The Jews rejected the Church and so it was shifted to the gentiles. This is also why the book of Hebrews is so poorly understood.
The differentiation of the target audiences does not mean the Word is 'two in one', however. It is always constant and through hermeneutics it's impossible to separate one portion from the other due to it being totally and completely parallel. Regardless of the target audience salvation always remained the same.