J.I. Packer said:
In drawing the threads together, two general questions about the relation of the penal substitutionary model to the biblical data as a whole may be briefly considered.
(1) Are the contents and functioning of this model inconsistent in any way with the faith and religion of the New Testament? Is it degrading to God, or morally offensive, as is sometimes alleged? Our analysis has, I hope, served to show that it is not any of these things. And to have shown that may not be time wasted, for it seems clear that treatments of biblical material on the atonement are often influenced by prejudices of this kind, which produce reluctance to recognize how strong is the evidence for the integral place of substitution in biblical thinking about the cross.48
(2) Is our model truly based on the Bible? On this, several quick points may be made.
First, full weight must be given to the fact that, as Luther saw, the central question to which the whole New Testament in one way or another is addressed is the question of our relationship, here and hereafter, with our holy Creator: the question, that is, how weak, perverse, estranged and guilty sinners may gain and guard knowledge of God’s gracious pardon, acceptance and renewal. It is to this question that Christ is the answer, and that all New Testament interpretation of the cross relates.
Second, full weight must also be given to the fact that all who down the centuries have espoused this model of penal substitution have done so because they thought the Bible taught it, and scholars who for whatever reason take a different view repeatedly acknowledge that there are Bible passages which would most naturally be taken in a penal substitutionary sense. Such passages include Isaiah 53 (where Whale, as we saw, [n. 36] finds penal substitution mentioned twelve times), Galatians 3:13, 2 Corinthians 5:15, I Peter 3:18; and there are many analogous to these.
Third, it must be noticed that the familiar exegetical arguments which, if accepted, erode the substitutionary view — the arguments, for instance, for a non-personal concept of God’s wrath and a non-propitiatory understanding of the hilaskomai word. group, or for the interpreting of bloodshed in the Old Testament sacrifices as the release of life to invigorate rather than the ending of it to expiate — only amount to this: that certain passages may not mean quite what they have appeared to mean to Bible students of earlier generations. But at every point it remains distinctly arguable that the time-honoured view is the true one, after all.
Fourth, it must be noted that there is no shortage of scholars who maintain the integral place of penal substitution in the New Testament witness to the cross. The outstanding contributions of James Denney and Leon Morris have already been mentioned, and they do not stand alone. For further illustration of this point, I subjoin two quotations from Professor A. M. Hunter. I do so without comment; they speak for themselves.
The first quotation is on the teaching of Jesus in the synoptic gospels. Having referred to theories of the atonement ‘which deal in “satisfaction” or substitution, or make use of “the sacrificial principle”’, Hunter proceeds: ‘It is with this type of theory that the sayings of Jesus seem best to agree. There can be little doubt that Jesus viewed his death as a representative sacrifice for “the many”. Not only is His thought saturated in Isa. liii (which is a doctrine of representative suffering), but His words over the cup — indeed, the whole narrative of the Last Supper — almost demand to be interpreted in terms of a sacrifice in whose virtue His followers can share. The idea of substitution which is prominent in Isa. liii appears in the ransom saying. And it requires only a little reading between the lines to find in the “cup” saying, the story of the Agony, and the cry of dereliction, evidence that Christ’s sufferings were what, for lack of a better word, we can only call “penal”.49
The second quotation picks up comments on what, by common consent, are Paul’s two loci classici on the method of atonement, 2 Corinthians 5:21 and Galatians 3:13. On the first, Hunter writes: ‘Paul declares that the crucified Christ, on our behalf, took the whole reality of sin upon himself, like the scapegoat: “For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God.” Paul sees the Cross as an act of God’s doing in which the Sinless One, for the sake of sinners, somehow experienced the horror of the divine reaction against sin so that there might be condemnation no more.
‘Gal. 3:13 moves in the same realm of ideas. “Christ redeemed us from the curse of the law, having become a curse for us.”’ (I interpose here my own comment, that Paul’s aorist participle is explaining the method of redemption, answering the question ‘how did Christ redeem us?’, and might equally well therefore be translated ‘by becoming a curse for us’.) ‘The curse is the divine condemnation of sin which leads to death. To this curse we lay exposed; but Christ on his cross identified himself with the doom impending on sinners that, through his act, the curse passes away and we go free.
‘Such passages show the holy love of God taking awful issue in the Cross with the sin of man. Christ, by God’s appointing, dies the sinner’s death, and so removes sin. Is there a simpler way of saying this than that Christ bore our sins? We are not fond nowadays of calling Christ’s suffering “penal” or of styling him our “substitute”; but can we avoid using some such words as these to express Paul’s view of the atonement?’50
Well, can we? And if not, what follows? Can we then justify ourselves in holding a view of the atonement into which penal substitution does not enter? Ought we not to reconsider whether penal substitution is not, after all, the heart of the matter? These are among the questions which our preliminary survey in this lecture has raised. It is to be hoped that they will receive the attention they deserve.