“The God-relationship is the mark whereby love towards men is recognized as genuine love. As soon as a love-relationship does not lead me to God, and as soon as I in a love-relationship do not lead another person to God, this love, even if it were the most blissful and joyous attachment, even if it were the highest good in the lover's earthly life, nevertheless is not true love. The world can never get through its head that God in this way not only becomes the third party in every relationship of love but essentially becomes the only loved object, so that it is not the husband who is the wife's beloved, but it is... God, and it is the wife who is helped by the husband to love God, and conversely, and so on. The purely human conception of love can never go further than mutuality: that the lover is the beloved and the beloved is the lover. Christianity teaches that such a love has not yet found its proper object: God. The love-relationship is a triangular relationship of the lover, the beloved, love--but love is God. Therefore to love another person means to help him to love God and to be loved means to be helped." –Kierkegaard
Can this be true? If it is, the love of the world is in stark contrast to this truth. What is unconditional love? 1 John 4: 7-12. “Dear friends, let us love one another, for love comes from God, everyone who loves has been born of God and knows God. Whoever does not love does not know God, because God is love. This is how God showed his love among us; He sent his one and only Son into the world that we might live through him. This is love, not that we loved God, but that he loved us and sent his Son as an atoning SACRFICE for our sins. Dear friends, since God so loved us, we also ought to love one another. No one has ever seen God; but if we love one another, God lives in us and his love is made complete in us.”
So God is love, but this particular passage doesn’t tell us what love is. Jesus teaches that love is not an idea, or a conception, rather it is an action. John 15: 12-13 says, “My command is this; Love each other as I have loved you. Greater love has no one than this, that he lay down his life for his friends.” So then love is sacrifice, and sacrifice is love. ‘Whoever does not love does not know God, because God is love.’ We can then infer that whoever does not sacrifice does not know God because God is sacrifice.