The book of Genesis was written by Moses during his early years, before 1487 B.C. (Geisler)
One Theme of the book of Genesis is creation.
Days of Creation
First Day….Light (so there was light and darkness)
Second Day….Sky and water (vapors separated)
Third Day…..Sea and earth (waters gathered); vegetation
Fourth Day…Sun, moon, and stars (to preside over day and night and to mark seasons, days, and years)
Fifth Day….Fish and birds (to fill the waters and the sky)
Sixth Day….Animals (to fill the earth) Man and woman (to care for the earth and commune with God)
Seventh Day..God rested and declared all he had made to be very good
If we look at the chart below, we see Chuck Swindoll's theme of Genesis: God promises to redeem and bless his people.
Genesis, being written by Moses, was written to the Hebrew children in captivity. The reminder of God's promises to Abraham would have given them encouragement and hope in their bondage in Egypt.
As discussed in the Introduction to the Pentateuch, the most immediate recipients of the Book of Genesis would likely have been the Exodus generation. Yet it is clear that the intended audience was to extend to all future generations of the elect seed of Abraham who would be born under the Mosaic covenant. https://bible.org/seriespage/1-analysis-and-synthesis-genesis
Genesis was written with three purposes in mind (Geisler): the historical, the doctrinal and the Christological.
The Life Application Study Bible gives the date of the writing of Genesis as 1450 B.C.-1410 B.C.
Abraham, Isaac, Jacob and Joseph are referred to as the Patriarchs of Genesis. Judah is included because he received the birthright. Following is some information about each of them:
Genesis 1:1: “In the beginning God created the heavens and the earth.”
Genesis 3:15: “And I will put enmity between you and the woman, and between your seed and her seed; He shall bruise you on the head, and you shall bruise him on the heel.”
Genesis 12:1-3: “Now the Lord said to Abram, ‘Go forth from your country, and from your relatives and from your father's house, to the land which I will show you; and I will make you a great nation, and I will bless you, and make your name great; and so you shall be a blessing; and I will bless those who bless you, and the one who curses you I will curse. And in you all the families of the earth shall be blessed.’”
Genesis 18:19: “ For I know him, that he will command his children and his household after him, and they shall keep the way of the Lord, to do justice and judgment; that the Lord may bring upon Abraham that which he hath spoken of him.”
Genesis 37:5: “ And Joseph dreamed a dream, and he told it his brethren: and they hated him yet the more.”
Genesis 39:8-9: “But he refused, and said unto his master's wife, Behold, my master wotteth not what is with me in the house, and he hath committed all that he hath to my hand; There is none greater in this house than I; neither hath he kept back any thing from me but thee, because thou art his wife: how then can I do this great wickedness, and sin against God?”
Genesis 50:20: “But as for you, ye thought evil against me; but God meant it unto good, to bring to pass, as it is this day, to save much people alive.”
Some debate has risen to how and when God created the world. Did God speak it in a twenty-four hour, six days like the Bible records? I believe the Bible, but here are some of the problems that people have: