No doubt the forms in which this truth is expressed are not always adequate to the idea they are meant to convey, and if we are only acquainted with them at second hand they will probably appear even less adequate than they are. When Athanasius, _e.g._, speaks of God's _truth_ in this connection, and then reduces God's truth to the idea that God must keep His word--the word which made death the penalty of sin--we may feel that the form only too easily loses contact with the substance. Yet Athanasius is dealing with the essential fact of the case, that God must be true to Himself, and to the moral order in which men live, in all His dealings with sin for man's deliverance from it; and that He has been thus true to Himself in sending His Son to live our life and to die our death for our salvation. Or again, when Anselm in the _Cur Deus Homo_ speaks of the satisfaction which is rendered to God for the infringement of His honour by sin--a satisfaction apart from which there can be no forgiveness--we may feel again, and even more strongly, that the form of the thought is inadequate to the substance. But what Anselm means is that sin makes a real difference to God, and that even in forgiving God treats that difference _as_ real, and cannot do otherwise. He cannot ignore it, or regard it as other or less than it is; if He did so, He would not be more gracious than He is in the Atonement, He would cease to be God. It is Anselm's profound grasp of this truth which, in spite of all its inadequacy in form, and of all the criticism to which its inadequacy has exposed it, makes the _Cur Deus Homo_ the truest and greatest book on the Atonement that has ever been written. It is the same truth of a divine necessity for the Atonement which is emphasised by St. Paul in the third chapter of Romans, where he speaks of Christ's death as a demonstration of God's righteousness. Christ's death, we may paraphrase his meaning, is an act in which (so far as it is ordered in God's providence) God does justice to Himself. He does justice to His character as a gracious God, undoubtedly, who is moved with compassion for sinners: if He did not act in a way which displayed His compassion for sinners, He would _not_ do justice to Himself; there would be no [Greek] _endeixis_ of His [Greek] _dikaiosune_: it would be in abeyance: He would do Himself an injustice, or be untrue to Himself. It is with this in view that we can appreciate the arguments of writers like Diestel and Ritschl, that God's righteousness is synonymous with His grace. Such arguments are true to this extent, that God's righteousness includes His grace. He could not demonstrate it, He could not be true to Himself, if His grace remained hidden. We must not, however, conceive of this as if it constituted on our side a claim upon grace or upon forgiveness: such a claim would be a contradiction in terms. All that God does in Christ He does in free love, moved with compassion for the misery and doom of