The words in Isaiah (45:5), "I am the A Lord, and there is none else, there is no God beside me," proclaim the oneness of God and His allness. God's allness is infinity. Infinity is not part good and part evil. It is not part perfection and part imperfection. Infinity is one and good. Therefore from the point of view of perfection nothing but perfection can be seen.
Suppositional mortal mind in its ignorance has attempted to include matter and evil in God's nature, to accept imperfection as a part of perfection. Here Christian Science enlightens the aspiring thought and makes plain the allness of good and the nothingness of evil.
Love always sees perfection. Even the human mother often sees her child as perfect regardless of any testimony to the contrary. But God sees His child as spiritually perfect. He loves His own idea. He could not see imperfection, and our love for Him reflects His love for the perfect man.