Noah in rabbinic literature "Sefer haYashar" describes another method for distinguishing them: the clean animals and fowls crouched before Noah, while the unclean ones remained standing. A difference of opinion concerning Noah prevails also with regard to his entering into the ark. According to some rabbis, Noah's faith was so small that he did not enter the ark until he stood ankle deep in water (Genesis Rabba xxxii. 9); others declare, on the contrary, that Noah waited for God's directions to enter the ark, just as he awaited His permission to leave it (ib. 34.4; Midrash Agadat Bereshit, in Jellinek, "B. H." iv. 11).
Generations of Noah son who refused to come aboard the Ark, instead preferring to climb a mountain, where he drowned. Some later Islamic commentators give his name as either "Yam" or "Kan'an". According to Irish mythology, as found in the "Annals of the Four Masters" and elsewhere, Noah had another son named Bith who was not allowed aboard the Ark, and who attempted to colonise Ireland with 54 persons, only to be wiped out in the Deluge. Some 9th-century manuscripts of the "Anglo-Saxon Chronicle" assert that "Sceafa" was the fourth son of Noah, born aboard the Ark, from whom the House of Wessex