The reason why God, the subject and the ultimate being of love, cannot forgive Satan is that Satan is the enemy of love. More precious than life is love, for there can be no life without love. You cannot have dominion unless you have the right of creation. But the origin of creation does not lie in power and economy but in love. Therefore, you can dominate creation through love.
Love is the core of unification.
Thus, unification is possible through love. Jesus was not able to say that he loved, but was only in the position of asking himself whether he had loved or not. He was in the position of being unable to love although he wanted to love. All enemies are not bad. If an enemy turns into a lovable being, it becomes more educational and instructive than harmful.