Christ is our attorney and His portfolio is His propitiation. He stands before His Father in heaven, and every time we sin, He doesn't make a new propitiation. He doesn't die again and again. Instead He opens his portfolio and lays the exhibits of Good Friday on the bench before the Judge. Photographs of the crown of thorns, the lashing, the mocking soldiers, the agonies of the cross, and the final cry of victory: It is finished.
John Piper