Evil is nothing but the refusal of love and compassion. But disorder, falsehood, lies, enslavement , and moral evil are terribly real and impinge on us to destroy all that is good in our lives. We can only define evil in relation to humans who are tempted, enslaved, deprived of dignity, unjustly accused, oppressed, abused, or denied love and compassion. We cannot think of evil in impersonal terms. Temptation is a voice suggesting another course of action, as when Jesus was tempted.
Enslavement needs humans to do the enslaving.
You can only be deprived of dignity by one or more persons. Unjust accusation needs an accusing voice. Oppression needs an oppressor, and being abused an abuser. It is only a personal being who can deny love and compassion. This is why the city of Babylon was addressed in very personal terms as Lucifer.