Many Christians today desperately want to believe that Paul taught that since we are saved by grace through faith in Messiah, that this also supposedly means that we should not obey God's Commandments any longer.  The big problem with this idea is that both the Old Testament and the New Testament of Scripture openly calls the lifestyle of living outside of God's Laws and Commandments to be LAWLESSNESS or in Greek ANOMIA.  The FACT is that Paul taught AGAINST Lawlessness more than any other writer of the New Testament

Paul said that lawlessness was a characteristic of someone controlled by the sinful nature, and that we should not be lawless anymore after coming to Christ, (Romans 6:19).  Paul said that not submitting to God's Law is carnal minded.  It's hostile against God.  It cannot please God.  Such a mindset and lifestyle leads to death, (Romans 8:5-8).  Paul said that lawlessness is a characteristic that defines the Antichrist, (2 Thessalonians 2:3-12).  That's a serious problem for most Christians.  They are not teaching the same grace that Paul preached.