Define evil? I will give a quick definition for evil.
Anything God said is evil, that is what evil is. It is evil only because God said it is.
It is written that God can not do evil. That is true even if he started killing everyone on the earth. He cannot do evil because he is God, he owns all.
God said he hates it, and therefore God calls it evil. That means if we do the things God hates, we are doing evil. Not that God is able to do evil, as he is God.
If we obey God's commandments he will do no evil too us.