2 Ne 1:6-10

Questions

What is the "promise" that Lehi obtains in vs. 9? What are the conditions of the promise? Is this a one-way promise from the Lord, or do these verses imply a two-way covenant between the Lord and the posterity of Lehi?
In verse 10 Lehi tells us that if after having received so great blessings from the Lord, his descendants still reject the Messiah, they will be judged accordingly. From the context it is clear that the Lord expects those who have received these blessings to know better than to reject the Messiah. One of these blessing is "having a knowledge of the creation of the earth." Why is knowledge of the earth particularly important? How does knowing about the creation help us to understand and accept Jesus as our Messiah?
Where in modern LDS worship do we recieve "a knowledge of the creation of the world" and recieve "all the commandments from the beginning" (v.10)?

Verse 7 promises those that the Lord brings to the land of the Nephites and Lamanites that they will not be brought into captivity so long as they are righteous. If they are not righteous, the land will be cursed to them.
In verse 10 the "so great blessings" Lehi describes sound much like the blessings given to modern LDS worshippers in the temple endowment. See related links for more information on the temple endowment.