What does God need? God does not need even life. As the initiator of life, why would He need that? Then what does He need? He needs love. Why does God need love? He needs love because love is something that exists only in a reciprocal relationship. Without being a God who needs love, He would be unable to make a relationship with the created world and human world.

Since the conclusion is that God cannot make a relationship with the world of existence without coming with a heart of love, He fixed love as the standard.