St Paul goes so far as to write, “God has made him who knew no sin to be sin for our sake” (2 Cor. 5:21). We are not to think here solely in terms of some juridical transaction, whereby Christ, himself guiltless, somehow has our guilt “imputed” to him in an exterior manner. Much more is involved than this. Christ saves us by experiencing from within, as one of us, all that we suffer inwardly through living in a sinful world.