Bereshit, Bereishit, Bereshis, Bereishis, or B'reshith (בְּרֵאשִׁית—Hebrew for "in beginning" or "in the beginning," the first word in the parashah) is the first weekly Torah portion (פָּרָשָׁה, parashah) in the annual Jewish cycle of Torah reading. The parashah consists of Genesis 1:1–6:8.
In the parashah, God creates the heavens, the world, Adam and Eve, and Sabbath. A serpent convinces Eve, who then invites Adam, to eat the fruit of the tree of the knowledge of good and evil, which God had forbidden to them. God curses them and expels them from the Garden of Eden. One of their sons, Cain, becomes the first murderer, killing his brother Abel out of jealousy. Adam and Eve have other children, whose descendants populate the Earth. Each generation becomes more and more degenerate until God decides to destroy humanity. Only one person, Noah, finds God's favor.
(summary from Wikipedia.org)