In other words, BS!
I think maybe you should consult a dictionary.
What do you think is BS and what's your rational/proof that it's BS ?
Do you have a better exegesis?
R. B. Yerby wrote “The Once and Future Israel” and made the very point Bahnsen made. 62 pages in PDF on the ‘net.
I might add that you should read your Bible rather than have someone explain your Bible to you...