For more
detailed informations
about Prophets find this site page which you can read
about Ismael and turn pages to read
about Abraham or Isaac; http://www.witness-pioneer.org/vil/Articles/Prophet/ismail.htm
The laws
about sacred seasons, Sabbath observance,
details of sacrifice, clean and unclean foods, bulk much larger than legislation on ethics, and this lack of perspective and proportion, this inveterate idea that Yahweh was appeased by ceremonial behavior, obtained so firm a grip that even the
prophets who contended against it never broke its hold, as orthodox Judaism today bears witness.