This is the account (literally These are the generations; Hebrew toledoth): This phrase appears often in Genesis. It helps outline the book. It usually introduces the family line or story of an important person (5:1; 6:9; 10:1; 11:10, 27; 25:12, 19; 36:1; 37:2).
Some people think the first part of 2:4 belongs with 1:1–2:3, but it probably introduces the next story.
LORD God (Hebrew Yahweh Elohim): This is the second name for God in Genesis. Elohim (1:1–2:3) refers to the all-powerful creator God. Yahweh Elohim refers to the eternal God who made a lasting covenant with Israel (Exodus 3:6, 13–15). So, Genesis 2:4–25 focuses on God as a provider more than as a creator.
The three themes of sexuality, dominion, and food in chapter 1 are now in reverse order (food, 2:8–17; dominion, 2:18–20; sexuality, 2:21–25).