Commentators agree that God graciously gives Cain a clear path back to acceptance. The phrase 'if you do well' is an invitation to amend his heart and his offering. God promises that if Cain does this, he will be 'lifted up'—a term that can mean having his fallen countenance raised, his offering accepted, or his sin forgiven. One scholar even suggests 'sin-offering lies at the door,' implying the remedy for his failure was readily available.