2 John 1:4-6 (New International Version)

 ⁴It has given me great joy to find some of your children walking in the truth, just as the Father commanded us. ⁵And now, dear lady, I am not writing you a new command but one we have had from the beginning. I ask that we love one another. ⁶And this is love: that we walk in obedience to his commands. As you have heard from the beginning, his command is that you walk in love.