The law. Following it in strict obedience and continually pointing out the flaws of others. Using it to get others to behave. Reminds me of the Pharisees. They exerted power to control and keep what they had.
They kept people out.
Grace. Jesus came to show a new way. Bring a new covenant. Although He understood that people broke the law, He wanted to heal those who saw their brokenness. He gave up His power to serve and give.
He drew people in.