Legalism, legalistic, judgemental, and self-righteous are all words that make me feel nauseous. How about you? I grew up in a time in which in many circles that was the feeling about churches. Men began to take their eyes off the Bible and preach man-made ideas as if it was truth. 

Jesus said in Matthew 5:17 that He did not come to abolish the law, but to fulfill it. In Mark 2 and 3 we see a verbal sparring over the Pharisees' view of religious regulations and Jesus's apparent superseding. The law is vital and powerful to reveal that all men can not ever be completely lawful and in its intended effect points us to the need of a Savior. Satan seeks to trap us at every turn. He will use doing good, ritualistic, dogmatic things to get our eyes off Jesus and on our own merit, causing us to be ineffective for the cause of the gospel on the ground.