I am an atheist but have you seen anything evil in any of the replies I sent your way?

Yes, being an atheist is evil. In the given situation this is an example.

If you are my sibling and we have only one parent (our father and mother). How do I know if you are a good child or evil?

Treat me as your personal sibling or brother here. I feel anger and hatred on you as my brother who do not recognize our Parent(Father) who bear difficulty when the times we are helpless. Being an Atheist is foolishness, our Father will never tell you to recognize all what He has done but me as your brother will tell you that.

Our Father will never tell you to respect Him, but I as your sibling will tell you to respect Him. The God of heaven and earth loved us since the beginning but you don't respect him by saying "There is no God".

This situation, I am your angry brother to you because you don't recognize Him.

The fool hath said in his heart, There is no God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14:1
King James Version (KJV)