Richard Ritenbaugh, focusing on the Pharisees, analyzes the reasons for their continuous condemnation. Having their origin in the days of Ezra, the Scribes and Pharisees were extremely zealous for the law, separating themselves for this exclusive purpose. Over time, this originally noble purpose devolved into a rigid, exclusivist sect, separating themselves from foreigners, heretics, or base people, manufacturing strict, repressive rules for the Sabbath; supporting and detailing the Temple service; and promoting strict observance of the tithing laws. As the teachers of the people, they held a great deal of power, which soon became corrupt, turning them into arrogant, desiccated legalists, ignoring the redemptive aspects of God's law. Pharisees sought after signs, interminably multiplied regulations concerning ceremonially clean and unclean, and developed elaborate regulations for washings, actually leading to the breaking of God's law.
John Ritenbaugh reiterates that Paul's target in Galatians 2:16 was a syncretism of Judaism with strict Pagan ascetic Gnosticism and certainly not God's law. We need to avoid the Protestant ditch of "Christ did it all" leading to no attempt at law keeping or at best an apathetic assent to its value. Paul makes it abundantly clear that Christ did not free us from the death penalty in order to turn us into lawbreakers. Though God did not design the law to justify; without the law telling us of what to repent of, we would have no clue as to which path to take. The secret to successful law keeping is Christ living in us through God's Holy Spirit (Galatians 2:20; Romans 5:5) Christ will empower us, but will not live our lives for us. The marching orders for our pilgrimage derive from God's Word- containing His holy law.
John Ritenbaugh teaches that in Galatians Paul took issue with the Halakhah- the Jewish way of life- not God's word, but a massive collection of human opinion, some fairly accurate, but some way off the mark, placing a yoke or burden upon its followers. Jesus, in Matthew 23, acknowledged the authority of those sitting in Moses seat, but he took great exception as to how they were using their authority, a zealous obsession with the traditions of the fathers, but almost no application of God's Law. Being strict in human tradition does not mean keeping God's laws, but instead an exercise in zeal without knowledge. On the other hand, Galatians 2:16 does not "do away" with God's Law, or make faith and works mutually exclusive (James 2:24). Works must be based upon faith in Jesus Christ.
John Ritenbaugh reiterates that the entire Old Testament was written with the New Testament church in mind. Certain temporary ceremonial sacrifices, washings, and rituals were set aside when the spiritual reality—such as Christ's sacrifice replacing animal sacrifices and God's Holy Spirit and His Word replacing physical washings (Hebrews 9:18; Ephesians 5:26)—added a spiritual dimension. All biblical law, including the ceremonies, comes from God. Paul never taught any Jew to forsake the Law of Moses, the constitution and civil code, but he did rail against Pharisaical additions for the expressed purpose of attaining justification. Even though a change occurred in the administration of existing law, no laws were done away. Instead, they are written in the hearts of the converted (Hebrews 8:10; 10:16).