It wasn't strange. In justified fear of being killed because of her beauty, he asked that she state that they were siblings (Genesis ch.12 and ch.20). See also:
No, Sarai was not Abram's sister. She was his wife.
wife of Terah
Sarah .
wife of Terah
Yes his wife was Lucrieta Rudolph and hand seven kids in total.
Sarai is the wife of Abram. After Abram made a covenant with GOD, GOD changed his name to Abraham. His wife was no longer Sarai, but Sarah. She is the Mother of nations, not the Bible. For the Bible was not written yet. It would not get its first book for another 500 years or so.
Sarah; originally Sarai (Genesis ch.11 and 17).
According to Genesis 12:13, Abram feared that the king would kill him in order to have sex with his wife. Abram somehow knew that the king would not kill her brother for the same reason, so told the king that she was only his sister. For the same reason, he successfully deceived the king of Gerar by saying that his by now quite elderly wife really was his sister.
His second-best bed.
he cheated on his wife with her mum
no
Genesis 1 and 2: God created the heavens and the Earth, and Adam and Eve Genesis 3: Adam and Eve sin and cause the fall of man. The first messianic prophecy is made. (he will strike your head and you will strike his heal) Genesis 4: Cain kills Abel Genesis 6-8: God instructs Noah to build and ark and floods the earth. Genesis 9: God makes a covenant with Noah to never flood the Earth again. Genesis 11: a few generations after Noah, the people of the world try to build the Tower of Babel and God stops them by giving everyone different languages and causing them to spread out. Genesis 12: God calls Abram, and Abram gets his wife Sarai to lie for him in Egypt. Genesis: 13-14: Abram separates from his nephew Lot and when war finds Lot, Abram rescues him. Genesis 15: Abram makes a covenant with God, where God promises Abram an heir, and makes a prophecy. Genesis16: Abram sleeps with Hagar at Sarai's request and Ishmael is born. Genesis 17: God changes Abram's name to Abraham and they make the covenant of circumcision. Genesis 18: Three visitors arrive that promise Abraham a son. Abraham pleads on behalf of the righteous in Sodom. Genesis 19: Sodom and Gomorrah are destroyed, but God saves Lot. Lot's wife is turned into a pillar of salt. Genesis 20: Abraham gets Sarah to pretend to be his sister again and is rebuked by Abimelech. Genesis 21: Isaac is born.