As we keep browsing through the later part of Paul's letter to the Galatians, notice the contrast between flesh and Spirit. To Paul's dismay, the Galatians had been baited into adding works and law to their faith in Christ. Paul was trying to pull them out of the ditch and steer them back onto the road less traveled ... walking by the Spirit and bearing the fruit of the Spirit, where there is no law. Interestingly, notice Paul's point about how the Jews who were encouraging circumcision were not successful law keepers ... but were seeking bragging rights in the fleshly works of the Gentiles because of their recruiting efforts:
"As many as desire to make a good showing in the flesh, these would compel you to be circumcised, only that they may not suffer persecution for the cross of Christ. For not even those who are circumcised keep the law, but they desire to have you circumcised that they may boast in your flesh. But God forbid that I should boast except in the cross of our Lord Jesus Christ, by whom the world has been crucified to me, and I to the world." (Galatians 6:12-14)
Did Paul encourage the Galatians to keep the Mosaic law? In spite of the many church teachings we've been exposed to over the years, the answer is no. But one may ask, didn't Paul encourage his audience to work on loving their neighbor as themselves? Isn't this the key summary to people fulfilling that burdensome law? If we chop up one verse without the context, some may assume this is what he said. So let's zoom out and then take a closer look.
Not even this one law from the law could bring life or righteousness. It is not our goal to try to keep it or any lawful command attached with a condition. We have a new motivation as believers in Christ.
Paul begins to contrast the flesh with the Spirit. The flesh can sometimes look sinful and ugly, while at other times it may appear very religious and good outwardly. Jesus fulfilled the law; therefore, the better option is walking by the Spirit and being led by the Spirit in order to avoid all of the old and unprofitable law entirely ... including modernized versions of it.