We know well how, when the way of God had been learnt more perfectly, this earlier moral experience of the effect of the law on himself and others worked itself out in St. Paul's mind into a deep theory of the function, not of 'the law' only, that is the Mosaic law, but of law altogether--of 'the letter' of any body of external enactments. Law, he found, could enlighten the conscience, but it could never reach deep enough to the springs of will to strengthen and purify them. God must become more intimate to man than any external law can make Him. A law of ordinances can only be a preparatory discipline, intended by the very falsity of the assumption on which it is based to teach men that they are not what they fancied themselves. {16} They fancied themselves beings sufficiently independent to stand on their own basis and enter into a covenant with God, to make a compact with Him to observe a law and to abide by the result. It is the function of such a compact as between independent parties to convince men that any such relation between God, the Creator and Giver, and man, the creature and simply the receiver--still more between God the Holy and man the defiled and weakened--is simply contrary to fundamental facts[20]. As yet, however, St. Paul was only rendered miserable by his experience under the law. To feel himself a sinner alienated from God was a profound humiliation to his spiritual pride. He was fired no doubt by the lofty ideal of the righteous nation, standing before God in virtue of its righteousness, of its performance of the divine law, and therefore making its claim on God to vindicate it before the whole world. He threw himself zealously into rigid observance: only, however, to find himself humiliated and perplexed.