Does a God exist?

[Pat Mustard]

Is focusing so heavily on the NT an admission that trying to evidence the OT is a doomed project?

Of course that approach is doomed to a failure signified by the new testament itself. Because as is said often enough in the gospels and new testament, Yeshua's legitimacy is dependent on him fulfilling the prophesies and upholding the laws in the old testament. So if you discard the ot the nt falls apart.