The answer to that question is “yes!” Michael Horton writes: “While I believe that it’s generally true that those who are forgiven much love much and that those who are in view of God’s mercies will present their bodies as a living sacrifice, we have to recognize the deep depravity in our own hearts even as regenerate believers. Often I find myself reveling in the glories of the gospel for my own delight, oblivious to the “reasonable service” that it yields toward my neighbor. I can be writing a paragraph on the wonders of grace while I snap at my wife or children for interrupting me. We do need Christ to remind us, by his Spirit, through his law, that the gospel doesn’t stop at our own personal security and welfare, but drives us out to our neighbors in love and service. A good Shepherd guides his sheep. A good Father rebukes those whom he loves. We need to hear the very specific and uncomfortable rebukes of the law as well as the tender comfort of the gospel.
We always need the gospel wind in our sails and the directional equipment (of the law) on our dashboard. Without the former, we’re dead in the water; without the latter, we’re blown all over the map.”