A challenge to Biblical Love is loving other people while focusing on self. In reality every believer struggles to resist focusing on the themselves. A self-centered person can only meter out drops of love from a dry cistern. When a Christian takes his focus from Jesus who is the perfect fulfillment of 1 Corinthians chapter 13, loving people becomes difficult.
True love comes from a focus on Jesus. When believers focus on Christ, we are able to pour out unselfish amounts of love on the most undeserving person. Each one of us who are declaring to be true disciples of Christ will have to choose unselfish love.