In Jesus’ Sermon on the Mount, he radically amplifies this definition of righteousness. He insists that righteousness is not simply a matter of what we do or don’t do but rather a question of why we do or don’t do it. His view of righteousness goes deeper than behavior and outward action. It always looks into a person, at the motivation of the act.
– Tchividian, Tullian; One Way Love: Inexhaustible Grace for an Exhausted World; David Cook Publishers; copyright 2013; Kindle Edition; Location 419