The Book of Jasher

In Chapter III we are told that Adam died at the age of 930 and was buried "in the cave which God had told him".

Chapter	Verse	Text
III	14	And it was in the fifty-sixth year of the life of Lamech when Adam died; nine hundred and thirty years old was he at his death, and his two sons, with Enoch and Methuselah his son, buried him with great pomp, as at the burial of kings, in the cave which God had told him.

Leading up to the Great Flood the Book of Jasher mentions that man started interbreeding animals and birds. This is mentioned in Chapter IV verse 18 which reads:

Chapter	Verse	Text
IV	18	And their judges and rulers went to the daughters of men and took their wives by force from their husbands according to their choice, and the sons of men in those days took from the cattle of the earth, the beasts of the field and the fowls of the air, and taught the mixture of animals of one species with the other, in order therewith to provoke the Lord; and God saw the whole earth and it was corrupt, for all flesh had corrupted its ways upon earth, all men and all animals.

The building of Noah's ark is mentioned in Chapter V. Noah was 595 when he started to build the ark and it took 5 years to build according to verses 34 which reads:

Chapter	Verse	Text
V	34	In his five hundred and ninety-fifth year Noah commenced to make the ark, and he made the ark in five years, as the Lord had commanded.

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