"Love one another" deserves our extended attention because it is the most repeated "one another" of the New Testament. In Romans 12:10, Paul described this love as "brotherly affection." Love in God's family ought to be a loyal, ongoing, friendly, expressive love. One chapter later, Paul wrote that love was the one debt we ought to never pay off (13:8). Paul's prayers showed the priority of love when he asked the Lord to help the Thessalonians grow and overflow in love for each other (1 Thess. 3:12).
Peter preached "love one another" in 1 Peter 1:22, commanding genuine love that comes from a pure heart. In chapter 4, he again highlighted ongoing and earnest love (v. 8). Love is essential to our church life because love covers a multitude of sins. If we love consistently and honestly, our relationships will never strain to the breaking point.

Finally, the apostle John also instructs us to love one another. John said this command came from the very beginning (1 John 3:11). Just as Christ commanded us to believe in Him, He also said to love one another (1 John 3:23). We should love each other because love is from God, it is proof we are born of and know Him, He is our great example, and our love for one another shows that God lives in us (1 John 4:7, 11, 12).