Again thirteen years rolled away, and still the Promise was not fulfilled. But when hope might almost have ceased to hope, God appeared once more to Abram, recapitulated the main outline of the Covenant-Promise, changed his name from Abram (_a high father_), to ABRAHAM (_the father of a multitude_), and assured him that at length the long-expected time was well-nigh come. But in prospect of the peculiar blessing about to be bestowed upon him, he himself, and all his seed after him, must carry about with them a perpetual pledge of their covenant relation to Jehovah. The rite of Circumcision must now be adopted by him, and instead of being the badge of any favoured class amongst the nation destined to spring from his loins, was, on pain of excommunication, to be open to the lowliest member of the Hebrew commonwealth, even to the bond-servant and the stranger. At the same time it was intimated to the patriarch that his wife Sarai, whose name also was now changed to SARAH (_princess_), and no other, was to be the mother of the promised child, that it would be born during the next year, and be called Isaac (_Laughter_); while Ishmael also, for whom Abraham had prayed, would not be forgotten, but be a partaker in the Divine blessing, and become the father of twelve princes, the ancestors of a great nation. Thereupon Abraham complied with the Divine command, and was circumcised, together with Ishmael, now thirteen years of age, and all the male members of his household. Shortly after this, as the patriarch sat, in the heat of the day, under the oak of Mamre, he received a visit from three mysterious Strangers, whom he entertained with becoming hospitality. The meal over which he had hastily prepared, one of them inquired for his wife, and formally announced that within the year she would be the mother of a son. His words were overheard by Sarah, and she laughed incredulously at the possibility of such an event, but was thereupon reproved by the Speaker, and assured in a still more confident manner of the fulfilment of His word. Then the Three left the tent and turned their steps eastward towards Sodom. Abraham accompanied them, and on the way one of them, in whom he recognised no other than the _Angel of the Covenant_, informed him of the real purport of this visit to the cities where his nephew Lot had taken up his abode. The sin of these cities was very great, and their cup was now full; their inhabitants had wearied themselves with wickedness, and their licentiousness and iniquity called to Heaven for a visible revelation of Divine wrath, and judgment was now _even at the door_. Informed of the impending doom the _Friend of God_ drew near, and with marvellous boldness blended with the deepest humility pleaded with the Almighty for the guilty cities. Peradventure there might be found therein at least fifty, or forty-five, or forty, or thirty, or twenty, or even ten righteous souls, would the _Lord of all the earth