Dear friends, let us love one another, for love comes from God. Everyone who loves has been born of God and knows God. This is a beautiful statement just as it is but if we do a search in the concordance and replace a few words it deepens the message of love just a bit.
Dear friends, let us actively love (agape) one another, for active love comes from the one true God (theos). Everyone who loves activity has been born of the one true God and knows the one true God.
On a side note John uses the word born more than any other New Testament writer.
Any look at the word love needs to go to John 21:15; this is where Jesus is asking Peter if he loves Him. The first two times Jesus ask about Peter’s love he uses the word agape and Peter answers with the word phileo. Phileo means affection or very high regard and though it is related to agape it does not have as deep a meaning.