When he stepped out from the ark into the open, he began to weep bitterly at sight of the enormous ravages wrought by the flood, and he said to God: "O Lord of the world! Thou art called the Merciful, and Thou shouldst have had mercy upon Thy creatures." God answered, and said: "O thou foolish shepherd, now thou speakest to Me. Thou didst not so when I addressed kind words to thee, saying: 'I saw thee as a righteous man and perfect in thy generation, and I will bring the flood upon the earth to destroy all flesh. Make an ark for thyself of gopher wood.' Thus spake I to thee, telling thee all these circumstances, that thou mightest entreat mercy for the earth. But thou, as soon as thou didst hear that thou wouldst be rescued in the ark, thou didst not concern thyself about the ruin that would strike the earth. Thou didst but build an ark for thyself, in which thou wast saved. Now that the earth is wasted, thou openest thy mouth to supplicate and pray." Noah realized that he had been guilty of folly. To propitiate God and acknowledge his sin, he brought a sacrifice.[49] God accepted the offering with favor, whence he is called by his name Noah.[50] The sacrifice was not offered by Noah with his own hands; the priestly services connected with it were performed by his son Shem. There was a reason for this. One day in the ark Noah forgot to give his ration to the lion, and the hungry beast struck him so violent a blow with his paw that he was lame forever after, and, having a bodily defect, he was not permitted to do the offices of a priest.[51] The sacrifices consisted of an ox, a sheep, a goat, two turtle doves, and two young pigeons. Noah had chosen these kinds because he supposed they were appointed for sacrifices, seeing that God had commanded him to take seven pairs of them into the ark with him. The altar was erected in the same place on which Adam and Cain and Abel had brought their sacrifices, and on which later the altar was to be in the sanctuary at Jerusalem.[52] After the sacrifice was completed, God blessed Noah and his sons. He made them to be rulers of the world as Adam had been,[53] and He gave them a command, saying, "Be fruitful and multiply upon the earth," for during their sojourn in the ark, the two sexes, of men and animals alike, had lived apart from each other, because while a public calamity rages continence is becoming even to those who are left unscathed. This law of conduct had been violated by none in the ark except by Ham, by the dog, and by the raven. They all received a punishment. Ham's was that his descendants were men of dark-hued skin.[54] As a token that He would destroy the earth no more, God set His bow in the cloud. Even if men should be steeped in sin again, the bow proclaims to them that their sins will cause no harm to the world. Times came in the course of the ages when men were pious enough not to have to live in dread of punishment. In such times the bow was not visible.[55]