While taking shelter in a cave, Lot's two daughters
(believing that they and their father are the only ones
left alive in the world) get their father drunk, lie
with him, and become pregnant. The two sons born from
this incident father the nations of Moab and Amon.
Abraham moves to Gerar, where the Philistine king
Avimelech takes Sarah -- who is presented as Abraham's
sister -- to his palace. In a dream, G-d warns Avimelech
that he will die unless he returns the woman to her
husband. Abraham explains that he feared he would be
killed over the beautiful Sarah.
G-d remembers His promise to Sarah and gives her and
Abraham a son, who is named Isaac (Yitzchak, meaning
"will laugh"). Isaac is circumcised at the age of eight
days; Abraham is 100 years old, and Sarah 90, at their
child's birth.
Hagar and Ishmael are banished from Abraham's home
and wander in the desert; G-d hears the cry of the dying
lad and saves his life by showing his mother a well.
Avimelech makes a treaty with Abraham at Be'er Sheva,
where Abraham gives him seven sheep as a sign of their
truce.
G-d tests Abraham's devotion by commanding him to
sacrifice Isaac on Mount Moriah (the Temple Mount) in
Jerusalem. Isaac is bound and placed on the altar, and
Abraham raises the knife to slaughter his son. A voice
from heaven calls to stop him; a ram, caught in the
undergrowth by its horns, is offered in Isaac's place.
Abraham receives the news of the birth of a daughter,
Rebecca, to his nephew Bethuel.