If we are all born from Adam and Eve, why there is colour differences like black, brown and white among us?
Adam was the color of clay , a reddish brown . It was melanin that was responsible for his color .
Years later Leprosy turned parts of the skin to turn white and turned the black hair yellow.
It was explained thoroughly in Leviticus 13 -14 chapters .
29 If a man or woman have a plague upon the head or the beard;
30 Then the priest shall see the plague: and, behold, if it be in sight deeper than the skin; and there be in it a yellow thin hair; then the priest shall pronounce him unclean: it is a dry scall, even a leprosy upon the head or beard.
31 And if the priest look on the plague of the scall, and, behold, it be not in sight deeper than the skin, and that there is no black hair in it; then the priest shall shut up him that hath the plague of the scall seven days:
These were isolated cases and were not passed on genetically until the Leprosy was put on someone as a curse for the punishhment of evil they had done as thoroughly explained in the 2nd Kings the 5th chapter which concludes . 27 The leprosy therefore of Naaman shall cleave unto thee, and unto thy seed for ever. And he went out from his presence a leper as white as snow. The term “ unto thy seed forever “ is the genetic beggining of a race of people as white as snow . The mixing of races is the cause of so many different skin colors as explained in the bible .