18. A clear distinction is here made between the services rendered God by Christians and those which the Jews rendered. The thought is: The Jews' service to God consisted in sacrifices of irrational beasts, but the service of Christians, in spiritual sacrifices--the sacrifice of their bodies, their very selves. The Jews offered gold and silver; they built an inanimate temple of wood and stone. Christians are a different people. Their sacrifices are not silver and gold. Their temple is not wood and stone; it is themselves. "Ye are a temple of God." 1 Cor 3, 16. Thus you observe the unfair treatment accorded Christians in ignoring their peculiar services and inducing the world to build churches, to erect altars and monasteries, and to manufacture bells, chalices and images by way of Christian service--works that would have been too burdensome for even the Jews. 19. In brief, this our reasonable service is rightly called a spiritual service of the heart, performed in the faith and the knowledge of God. Here Paul rejects all service not performed in faith as entirely unreasonable, even if rendered by the body and in outward act, and having the appearance of great holiness and spiritual life. Such have been the works, offerings, monkery and stringent life of the Papists, performed without the knowledge of God--having no command of God--and without spirit and heart. They have thought that so long as the works were performed they must be pleasing to God, independent of their faith. Such was also the service of the Jews in their works and offerings, and of all who knew not Christ and were without faith. Hence they were no better than the service and works of idolatrous and ignorant heathen. "And be not fashioned according to this world: but be ye transformed by the renewing of your mind, that ye may prove what is the good and acceptable and perfect will of God."