Thirteen years after the birth of Ishmael the command was issued to Abraham that he put the sign of the covenant upon his body and upon the bodies of the male members of his household. Abraham was reluctant at first to do the bidding of God, for he feared that the circumcision of his flesh would raise a barrier between himself and the rest of mankind. But God said unto him, "Let it suffice thee that I am thy God and thy Lord, as it sufficeth the world that I am its God and its Lord."[123] Abraham then consulted with his three true friends, Aner, Eshcol, and Mamre, regarding the command of the circumcision. The first one spoke, and said, "Thou art nigh unto a hundred years old, and thou considerest inflicting such pain upon thyself?" The advice of the second was also against it. "What," said Eshcol, "thou choosest to mark thyself so that thy enemies may recognize thee without fail?" Mamre, the third, was the only one to advise obedience to the command of God. "God succored thee from the fiery furnace," he said, "He helped thee in the combat with the kings, He provided for thee during the famine, and thou dost hesitate to execute His behest concerning the circumcision?"[124] Accordingly, Abraham did as God had commanded, in bright daylight, bidding defiance to all, that none might say, "Had we seen him attempt it, we should have prevented him."[125] The circumcision was performed on the tenth day of Tishri, the Day of Atonement, and upon the spot on which the altar was later to be erected in the Temple, for the act of Abraham remains a never-ceasing atonement for Israel.[126] THE VISIT OF THE ANGELS On the third day after his circumcision, when Abraham was suffering dire pain,[127] God spoke to the angels, saying, "Go to, let us pay a visit to the sick." The angels refused, and said: "What is man, that Thou art mindful of him? And the son of man, that Thou visitest him? And Thou desirest to betake Thyself to a place of uncleanness, a place of blood and filth?" But God replied unto them, "Thus do ye speak. As ye live, the savor of this blood is sweeter to me than myrrh and incense, and if you do not desire to visit Abraham, I will go alone."[128]