They prophesied without the Spirit of prophecy; they healed the sick without the Spirit of healing; they cast out demons without the Spirit of casting out demons. If you first honour the Spirit of what you have been given, you will be known by God.
So, because they disregarded the Spirit of healing, of prophecy and of casting out demons, Jesus called them evildoers. They disregarded the Spirit of commandments.
The first commandment actually sets free from the law itself. Jesus came to fulfil the law and not to abolish it. He would appear on the Sabbath and appear as one who breaks the law [by doing things that were not supposed to be done on the Sabbath].