There might be injunctions against abusing children (although there is no penalty proposed, so I guess it's not as bad as 2 men having consensual sex) but it was common practice for girls of 12 to be married and there was no prohibition for children older than 3 years to be married (and that marriage to be sealed with intercourse).
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M*W: Back in those days sex activity was prevalent every which way and was accepted. Women and children were property to be used and abused. Sexual intercourse between men-men, brothers-sisters, parents-children (usually the father only had this right). In those days, it was no crime to participate sexually in any of these scenarios.
History has shown us that Abraham abused Isaac, but some say Ishmael, who was the first born son, not Isaac. Moses had sexual relations with his many wives, many daughters (although he preferred one of them), with his sisters and brother Semenkhare (Aaron). Their stories were grandly embellished to make them mythical heroes, but if they were real people, they had real lives. The Exodus wasn't an Exodus, it was the way of life for the Abiru shepherds who later became Canaanites who later became the Israelites. Trust me when I say that these ancient sex addicts knew a female goat or two (in the bibilical way, of course)! That was the customs of the day. The Hebrews even required the brother-in-law of a man to marry his widowed wife when his brother died. He might have already had five to ten wives, a few concubines, so what's one more?
People who believe these ancient human beings (if they even were human beings) lived chaste lives and were spiritually pure, I have some ENRON stock you might be interested in.
All the heroes in the bible are myths and were written by those scribes who's job it was to entertain the royal houses. If they were around today, they'd be on strike. Times change, but people don't.
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M*W's Friendly Atheist Quote of the Day:
"Heresy is only another word for freedom of thought." ~ Graham Greene