John Calvin on 1 John 4:11

11 Beloved Now the Almighty accommodates to his own purpose what he has just taught us respecting the love of God; for he exhorts us by God’s example to brotherly love; as also Paul sets before us Christ, who offered himself to the Father a sacrifice of pleasant fragrance, that every one of us might labor to benefit his neighbors. (Ephesians 5:2.) And John reminds us, that our love ought not to be mercenary, when he bids us to love our neighbors as God has loved us; for we ought to remember this, that we have been loved freely. And doubtless when we regard our own advantage, or return good offices to friends, it is self-love, and not love to others.