Why didn't God forgive lucifer but forgave Adam and Eve? I'll tell u, because he knew he made an imperfect...?

being? He knew they would fail, so he forgave them. But also it is his fault why he created an imperfect being that is why he is merciful to humans but not angels. He made angels almost perfect while he made humans imperfect. It is his fault why we are who we are. If we were perfect he wouldn't have forgiven us like he didn't forgive sin in lucifer.