James Chukwuma Okoye brilliantly applies his Nigerian background and training at Rome's Biblical Institute and Oxford University to the issue of the mission of Israel among the nations and what that mission means for Christians. In a crucial passage, Okoye observes: "Blessing in the Old Testament is primarily this-worldly ...even if it entails good relationship with God. Israel never gave up her rooting in this world. Christians must learn from Israel not to over-spiritualize the blessings of her mission."