Another term for Christians which appears in the New Testament is "Nazarenes" which is used by the Jewish lawyer Tertullus in Acts 24. Tertullian (Against Marcion 4:8) records that "the Jews call us Nazarenes," while around 331 AD Eusebius records that Christ was called a Nazoraean from the name Nazareth, and that in earlier centuries "Christians," were once called "Nazarenes." The Hebrew equivalent of "Nazarenes", Notzrim, occurs in the Babylonian Talmud, and is still the modern Israeli Hebrew term for Christian.
Try to answer this question if possible (otherwise reply "unanswerable"): In which book of the Old Testament does Tertullus use the term Nazarenes to refer to Christians?
unanswerable