Peter enjoins his readers to be fervent in their love to one another. We see that this love is in believers because they have the Holy Spirit dwelling in them. The object of this love is our neighbors - everyone with whom we come into contact, including our enemies but especially our brothers and sisters in Christ. This love is the glue that binds our relationships together and without it they fall apart, because this love overlooks the sins and offences that we commit towards one another. This love is essential if we are to be what we ought to be in Christ. This love grows fainter with everything we do that quenches and grieves the Spirit of God and grows stronger as we use all the means of grace that God has given. We are strongly urged to pursue this love, without which we are nothing, and to excel in this grace above all, for everything else flows from this.