Hate

 
Whose hatred is covered by deceit, his wickedness shall be showed before the whole congregation.
Hatred is a sin that you can cover up by a smiling, friendly outside. But it is a poison that must be dealt with. If you have hate for someone, talk to the Lord about it. It is a very grievous and destructive sin that causes trouble in the end. It breaks up families, it breaks up assemblies, and it separates friends. Let God’s love help you to judge the hate.