#281 John Piper's Corruption of the Gospel

In a recent article John Piper stated: "we should not speak of getting to heaven by faith alone in the same way we are justified by faith alone." Has he compromised the gospel? Is it similar to the errors of Norman Shepherd? What did godly Reformed men of the past say on the error taught by Shepherd, and what should be the message to Piper and others like him today? What are the consequences of the Reformed community ignoring modern errors on justification by faith alone?