Reference

Mark 2:1-17; 2:23-3:12
Mercy Heals; Legalism Kills

Jesus' mercy was unconditional and abundant.  It evidenced His divinity.  It was active.  It was also attractive.  On the other hand, the Pharisees and their scribes are found sitting, watching, and waiting to find fault with the slightest mistake and transgression of God's law and the massive traditions they added to Scripture.  Ultimately, they responded to Jesus' mercy by plotting to kill Him.