These three words "God is love" separate the Gospel of Jesus Christ from every other religion, every other system of belief, thought, and philosophy. The original text reads:
|θεὸς ἀγάπη ἐστίν
When rendered literally, it reads "God love is." God is so essentially, indivisibly love, that the Holy Spirit instructed the Apostle John to write the two words right next to each other. When you think of God, the God who made the Universe, the God who sent His own Son to die for us, to save us from sin, death, hell, and to make us one with God, you can only think of Love.