This book was the culmination of several years spent teaching New Testament (NT) Greek on the epistles of Galatians, James, Jude, and Hebrews. It was discovered early in Pauline studies that Paul addressed the encroachment of 'Judaizers' as they added two tenets of Judaism to the requirements of salvation: circumcision and following the Mosaic law. Paul's letter was the earliest of the four written around 48 AD. James also wrote to the same group in 52 AD, learning about bursts of rage and conduct issues unbecoming to Christians. Jude, James's brother, also wrote a short letter to them (64 AD), concentrating on even more serious issues in their love-feasts. The last letter to the Hebrews (fall, 68 AD) also addressed church tendencies of lifting Moses above Christ, angel worship, and immaturity, warning Judean Christians of apostasy by treating Christianity as a mere religion, as the Jews had done over many centuries before with Judaism.