Beloved, let us love one another because love is from God; everyone who loves is born of God and knows God. Whoever does not love does not know God, for God is love. God’s love was revealed among us in this way: God sent his only Son into the world so that we might live through him. In this is love, not that we loved God but that he loved us and sent his Son to be the atoning sacrifice for our sins. (1 John 4:7-10, NRSV)
If you do not love you do not know God.
And the reason we have love is not that we loved God, but that God loved us while we were yet sinful and sent His son to show us love.
So if we do not love we are not a part of Him.
And we love others not because they deserve our love, but because God first loved us.
