Something shifted tremendously in how people followed God after Jesus walked our planet. Although the roots of the Christian faith are in Judaism, the way that modern Christians keep Sabbath, or don't, looks quite different from the way ancient Jews did. Jesus said he came not to abolish the law but to fulfill it. But really, that fulfillment changed a lot about how people lived out their faith.

Even when Jesus walked the earth, people were aware that he was shaking things up. The gospel writers often tell us that people marveled at Jesus' teaching because he spoke with "authority."

Commenting on the rabbinic tradition and this idea of authority, pastor and author Rob Bell writes, "Different rabbis had different sets of rules, which were really different lists of what they forbade and what they permitted. A rabbi's set of rules and lists, which was really that rabbi's interpretation of how to live the Torah, was called that rabbi's yoke. When you followed a certain rabbi, you were following ...