The Writings of Luke and the Jewish Roots of the Christian Way: An Examination of the Aims of the First Christian Historian in the Light of Ancient Po - Paperbackby J. Andrew Cowan (Author) J. Andrew Cowan challenges the popular theory that Luke sought to boost the cultural status of the early Christian movement by emphasising its Jewish roots associating the new church with an ancient and therefore respected heritage. Cowan instead argues that Luke draws upon the traditions of the Old Testament and its supporting texts as a reassurance to Christians, promising that Jesus' life, his works and the church that