In Mark 3:1-5, there was a man that had a withered hand. The Pharisees watched Jesus to see if He would heal this man on the Sabbath day because they wanted an excuse to accuse Him. Jesus has the man to stand before the people and He asks if it was lawful to do good on the Sabbath day. The Pharisees held their peace and did not say a word. In verse five it says that Jesus looked round about on them with anger, being grieved for the hardness of their hearts. Jesus heals this man and then it says that the Pharisees went out and took counsel with some others against Him how they might destroy Him. For the heart to be hardened means that it has a dulled perception, it is callus. The same word for “hardened” is also translated “blindness” two other times in the scriptures. What is it that the Pharisees were blinded to? They were blinded to the goodness of Christ. They were so caught up in their so called Sabbath keeping that went beyond scripture that they were unable to see the good that Christ was doing. They were so blinded by their own hypocritical religious heart, and so occupied with finding fault in Christ that they couldn’t see the good that He was doing. I believe that one true sign that we have a hard heart is when fail to see the good in others because in one aspect they do not line up with what we think. Often, we as Christians can over emphasize one aspect of Christian living and take it to extremes and thus judge everybody else by our extreme standard. If others don’t measure up on that one point then nothing else they do can possibly be right because they are so wrong in this one area that we have made as a measuring stick for spirituality.