33. To deny this, some one might cite as example the act of Noah, described below, when he built an altar without God's command, and offered a burnt-offering thereon to God from the clean animals. If this was permitted to Noah, why should we not be permitted to choose certain forms of worship? And, in truth, the Papacy has heaped up works and forms of worship in the Church without measure, just as it pleased. But we must hold fast to the principle, which is a theorem of general application, that whatsoever is not of faith, is sin, (Rom 14, 23). But faith cannot be separated from the Word; hence, whatsoever is done without the Word, is sin.
34. Furthermore, it is plainly dangerous to take the acts of the fathers as models. As individuals differ, so also do their duties differ, and God requires diverse works according to the diversity of our calling. Accordingly the epistle to the Hebrews fitly refers the various acts of the fathers to the one faith, in order to show that each of us must imitate, in his calling, not the works, but the faith of the fathers. Heb 11.
35. Hence works peculiar to the holy fathers must by no means be considered as models for us each to imitate as the monks imitate the fasting of Benedict, the gown of Francis, the shoes of Dominic and the like. Men become apes who imitate without judgment. The monks try to ape the works, but know nothing of the faith of the fathers.
36. Abraham was commanded to slay his son. Afterward his descendants most wickedly believed they should follow his example, and they filled the earth with innocent blood. In a similar manner the people worshiped the brazen serpent and offered sacrifices before it. In both instances the people wanted to justify themselves by the example of their forefathers; but since they established these forms of worship without the Word, they were righteously condemned.
37. Let us, therefore, remember not to establish anything without the Word of God. Duties differ, and so must the works of individuals. How foolish it would be for me to proclaim that I must follow Caesar's example, and that others must obey my laws! How wicked it would be for me to assert that I must follow the example of a judge, condemning some to the cross, others to the sword! Then, we must look, not upon the works, but upon the faith of individuals; for the faith of all saints is one, though their works are most diverse.
38. Think not that because Noah built an altar, you may do likewise; but follow the faith of Noah, who thought it right to show his merciful Savior that he understood his beneficent gifts, and was grateful for them. Follow Abraham, not in slaying your son, but in believing the promises of God, and in obeying his commandments. The epistle to the Hebrews fitly refers the deeds and acts of the fathers to their faith, setting forth that we should follow their faith.