Christian love is central to the life of every believer. When Paul speaks of the work of the Holy Spirit in Jesus' followers, love is the first item he mentions (Galatians 5:22); when our Saviour prepared his disciples for the events of that final night in Jerusalem, and everything that would come after, he spoke to them about love (John 13). Perhaps it is not an overstatement to say that love is at the root of the Christian faith - it is God's abiding and everlasting love that gives impetus to the incarnation of Christ and the redemption of his people.
At first glance, it is surprising that there is so little literature available about love. There may be different reasons for this. While the topic is very important, it is also difficult. Love is not easily defined. In some ways, it is simpler to experience love than to characterize it. Similarly, no author should think that he or she adequately understands, and especially expresses love. When we ask ourselves questions such as 'Am I qualified to write to others about love?' we recognize how far short of the standard we come. We are all striving after a better expression of this grace.