Verse 8. God is love - This little sentence brought St. John more sweetness, even in the time he was writing it, than the whole world can bring. God is often styled holy, righteous, wise; but not holiness, righteousness, or wisdom in the abstract, as he is said to be love; intimating that this is his darling, his reigning attribute, the attribute that sheds an amiable glory on all his other perfections.
Verse 12. If we love one another, God abideth in us - This is treated of, 1 John iv, 13-16. And his love is perfected - Has its full effect. In us - This is treated of, 1 John iv, 17-19