He who does not love does not know God, for God is love.
1 John 4:8
Surrounding context
4:7 Beloved, let us love one another, for love is of God; and everyone who loves is born of God and knows God.
4:8 He who does not love does not know God, for God is love.
4:9 In this the love of God was manifested toward us, that God has sent His only begotten Son into the world, that we might live through Him.