was designed to purify his love to the son of his body from all the dross of carnal self-love and natural selfishness which might still adhere to it, and so to transform it into love to God, from whom he had received him, that he should no longer love the beloved son as his flesh and blood, but simply and solely as a gift of grace, as belonging to his God-a trust committed to him, which he should be ready at any moment to give back to God. As he had left his country, kindred, and father's house at the call of God (Gen 12:1), so was he in his walk with God cheerfully to offer up even his only son, the object of all his longing, the hope of his life, the joy of his old age. And still more than this, not only did he possess and love in Isaac the heir of his possessions (Gen 15:2), but it was upon him that all the promises of God rested: in Isaac should his seed be called (Gen 21:12). By the demand that he should sacrifice to God this only son of his wife Sarah, in whom his seed was to grow into a multitude of nations (Gen 17:4, Gen 17:6, Gen 17:16), the divine promise itself seemed to be cancelled, and the fulfilment not only of the desires of his heart, but also of the repeated promises of his God, to be frustrated. And by this demand his faith was to be perfected into unconditional trust in God, into the firm assurance that God could even raise him up from the dead. - But this trial was not only one of significance to Abraham, by perfecting him, through the conquest of flesh and blood, to be the father of the faithful, the progenitor of the Church of God; Isaac also was to be prepared and sanctified by it for his vocation in connection with the history of salvation. In permitting himself to be bound and laid upon the altar without resistance, he gave up his natural life to death, to rise to a new life through the grace of God. On the altar he was sanctified to God, dedicated as the first beginning of the holy Church of God, and thus “the dedication of the first-born, which was afterwards enjoined in the law, was perfectly fulfilled in him.” If therefore the divine command exhibits in the most impressive way the earnestness of the demand of God upon His people to sacrifice all to Him, not excepting the dearest of their possessions (cf. Mat 10:37, and Luk 14:26); the issue of the trial teaches that the true God does not demand a literal human sacrifice from His worshippers, but the spiritual sacrifice of an unconditional denial of the natural life, even to submission to death itself. By the sacrifice of a ram as a burnt-offering in the
