Questions from Genesis Answered

Every fifth Sunday Jeff Asher answers Questions from the Question Box. Two question from Genesis were submitted. The first asked that the two accounts of creation found in Genesis 1:1-2:3 and Genesis 2:4-23 be reconcilled. It is not uncommon for it to be asserted that Moses contradicts himself in these texts. Is that the case? The other question asked about the origin of the nephilim or "giants" in Genesis 6:4. What does the Bible say about the giants? Who were they, where did they come from, and why were they destroyed?