The main cause of hatred is this very thing. We dislike them because they are more righteous than we are, or they have something that we want - position, possessions, talents, abilities, and sad to say in our day, a spouse. This is another Book that I would love to study out for myself and then teach. We see here that God has set the standard for love, because when we were in rebellion against Him and not worthy in any way of His love, He loved us. Therefore, we owe this love to everyone whether we feel they deserve it or not.
Love is a key doctrine of the Christian religion.
In 1 Cor. Therefore, he is not doing away wit anything, nor really adding. He is calling attention to these attitudes and emphasizing what is already required in the OT word of God. I would say that all of the abilities that God has provided us with, without the added love as defined here are nothing , v. 2. This list that Paul gives to us here is a very practical list, with no emotion attached to it.