Sarah was half-sister of Abraham?

[Joel]

Is this what the Bible teaches? I almost threw up when I heard this. How can people believe in incest?

Jacob married two of his cousins, Leah and Rachael (Gen 29).

Do I hear banjos playing?

---

Have to remember Sarah and Abraham were around before the Law forbade the union. Different time, different circumstances.

I thought Christians believed in absolute and objective morals, set in place by an unchanging god.

Are morals objective and absolute or are they not?

As God - apparently - is in control and knows everything, he obviously engineered this so that he could bypass his own laws.