[mosquitobite]

A history lesson from the bible: if you follow the tree of Adam and Eve all the way to Abraham and Sarah, inbreeding was quite common. God promised Abraham a son, but by age 75 Sarah still was barren. Abraham has Ishmael with Hagar at 90 years old.
Muslims claim the first born son, Ishmael, was an apostle and prophet, and was the legitimate successor. Christians and Jews believe it can only be the son resulting from conception within the marriage, or Isaac. Jews believe further that their divine message comes not only from Isaac, but from Isaac's son Jacob.
According to all 3 scriptures (the Bible, the Koran and the Holy Scriptures of Judaism), God calls upon Abraham to sacrifice his son as the greatest test of faith. However, in the Christian and Jewish Bibles, the son chosen to sacrifice was Isaac. Muslims believe it was Ishmael. (Note: Neither son was actually sacrificed because God was just practicing a cruel test. In the end, a ram was sacrificed.)
From these original family feuds, the division between the religions continued to deepen. Christians follow the teachings of Moses, Jesus and Abraham. In Islamic religion, Muslims believe the Prophet Muhammad in the seventh century carried the true word. They believed the teachings of Moses and Jesus to be distortions of the truth for which Muhammad was the remedy. Jews continued their split from Christianity by not accepting the divinity of Jesus as "the son of God". They believe God is spiritual, not flesh, and has no human attributes. Jews also do not believe in original sin nor heaven and hell.

"Again, it is amazing that the hatred and violence we see today between Muslims, Christians and Jews were born of the same teachings from a man called Abraham."

And all 3 essentially believe in the same God!

http://www.ethicalatheist.com/docs/three_religions.html

[mosquitobite]

I forgot to add, God declared to Moses that inbreeding was against His will. Leviticus chapter 18.

[BayouCoyote]

Jews also do not believe in original sin nor heaven and hell

Now there's a selling point!

[redheadtoo]

And all 3 essentially believe in the same God!

I must disagree, Allah was the name of the chief god of the Arab people before Mohammad came along. Allah was their moon god which is why the symbol of Islam is the crescent moon. When Mohammad decided to create a new monotheistic religion he picked Allah as his god and jettisoned the rest of the them. He then cut and pasted Jewish and Christian theology into the mix.