The day whereon God visited him was exceedingly hot, for He had bored a hole in hell, so that its heat might reach as far as the earth, and no wayfarer venture abroad on the highways, and Abraham be left undisturbed in his pain.[129] But the absence of strangers caused Abraham great vexation, and he sent his servant Eliezer forth to keep a lookout for travellers. When the servant returned from his fruitless search, Abraham himself, in spite of his illness and the scorching heat, prepared to go forth on the highway and see whether he would not succeed where failure had attended Eliezer, whom he did not wholly trust at any rate, bearing in mind the well-known saying, "No truth among slaves."[130] At this moment God appeared to him, surrounded by the angels. Quickly Abraham attempted to rise from his seat, but God checked every demonstration of respect, and when Abraham protested that it was unbecoming to sit in the presence of the Lord, God said, "As thou livest, thy descendants at the age of four and five will sit in days to come in the schools and in the synagogues while I reside therein."[131] Meantime Abraham beheld three men. They were the angels Michael, Gabriel, and Raphael. They had assumed the form of human beings to fulfil his wish for guests toward whom to exercise hospitality. Each of them had been charged by God with a special mission, besides, to be executed on earth. Raphael was to heal the wound of Abraham, Michael was to bring Sarah the glad tidings that she would bear a son, and Gabriel was to deal destruction to Sodom and Gomorrah. Arrived at the tent of Abraham, the three angels noticed that he was occupied in nursing himself, and they withdrew.[132] Abraham, however, hastened after them through another door of the tent, which had wide open entrances on all sides.[133] He considered the duty of hospitality more important than the duty of receiving the Shekinah. Turning to God, he said, "O Lord, may it please Thee not to leave Thy servant while he provides for the entertainment of his guests."[134] Then he addressed himself to the stranger walking in the middle between the other two, whom by this token he considered the most distinguished,—it was the archangel Michael—and he bade him and his companions turn aside into his tent. The manner of his guests, who treated one another politely, made a good impression upon Abraham. He was assured that they were men of worth whom he was entertaining.[135] But as they appeared outwardly like Arabs, and the people worshipped the dust of their feet, he bade them first wash their feet, that they might not defile his tent.[136]