Influencing For The Good
Abraham is told to go to the crossroads of the ancient world. This was so that he could influence people to live better lives morally. This is the mission that God wants from us. To be involved and make people better.
Do It For You
When Abraham is given the command to go to Canaan there is an extra word used. It should read Go to a land that I will show you. Instead, it reads Go for yourself. Why the extra word?
We Are Not Perfect
The Torah goes out of it way to infer that Noah, while righteous, was not perfect. This is to teach us, that while our great leaders were righteous, they made mistakes, and they learned from their mistakes. That is what made them great.