Christian in name only
When you push pro-Christian values, but ignore everything Jesus said about helping your sister or brother and loving everyone unconditionally.
Example:
Susan: Bill is such a strong Christian.
John: Hardly. Bill is a card carrying member of the KKK. He's more of a Christian in name only sort of guy.
Susan: Bill is such a strong Christian.
John: Hardly. Bill is a card carrying member of the KKK. He's more of a Christian in name only sort of guy.