How do you know this? You said that Abraham and Jacob were following the laws of Hammurabi but where did Hammurabi get his knowledge of what is right?
It is clear that people knew the difference between right and wrong before God revealed the Law to Moses. Much of the Mosaic Law wasn't a new revelation but a codification of laws that the people already knew. Abraham and Jacob knew how God wanted them to live; if they chose to obey a command that had been given by Hammurabi that shows that this command was actually what God wanted people to do.[/quote]
Whew, that is certainly a lot of supposition. Do you really want to go to that point? That whatever they decided to do according to the laws of their day--such as having a children by their concubines or wedding competing sisters--it was really because that's what God wanted them to do?
According to Hammurabi himself, he got his laws from Ba'al through Marduk:
"When Anu the Sublime, King of the Anunaki, and Ba'al, the lord of Heaven and earth, who decreed the fate of the land, assigned to Marduk, the over-ruling son of Ea, God of righteousness, dominion over earthly man, and made him great among the Igigi, they called Babylon by his illustrious name, made it great on earth, and founded an everlasting kingdom in it, whose foundations are laid so solidly as those of heaven and earth; then Anu and Bel called by name me, Hammurabi, the exalted prince, who feared God, to bring about the rule of righteousness in the land, to destroy the wicked and the evil-doers; so that the strong should not harm the weak; so that I should rule over the black-headed people like Shamash, and enlighten the land, to further the well-being of mankind. "