"Having purified your souls by your obedience to the truth for a sincere brotherly love, love one another earnestly from a pure heart, since you have been born again, not of perishable seed but of imperishable, through the living and abiding word of God;" - 1 Peter 1:22-23
As Christians we are asked to fulfill the law by loving one another. We are called to act on obedience, not conscience, and we are called to this action not for reward, but for the sake of fulfillment. For in the fulfillment of Providence we are given life, a gift beyond reward.
"Confident of your obedience, I write to you, knowing that you will do even more than I say."
- Philemon 1:21