Nazarene Israel by Normon Willis is a very succinct compendium of arguments proving that the original faith of the apostles and prophets is very different than what is being peddled today in the Christian churches, catholic or protestant. Normon explains how the early assemblies used nothing more than the TaNaK and how they met in synagogues and kept all the Feasts and seven day Sabbath rest exactly as a Christian would find them in their Old Testament. Normon details how the OT is not really "old" at all, but is the foundation for determining the truth. There is also a good deal of exegesis of difficult passages of Paul, Two house teaching, restoration teaching. and many other convincing proofs that the entire Christian world is under blindness and will soon be thrust in delusion because of the paganism and Rome worship in their faith. This is also a call to anyone who seeks truth to "come out of her" (being Babylon) and be a part of the true Israel, waiting to be reunited with Judah in the blessed promised land. It can be used as an evangelical tool and I found it a worthy read.