Sibling Rivalry; Genesis 25 & 27-28
Looking at Jacob and Esau, we see a family with quite a bit of dysfunction. The story of these brothers is a tale of caution for people who place their own desires ahead of their relationships.
Consistently Faithful; Genesis 24 & 26
Looking at Isaac, we see that playing a minor role in the story is not only okay, but can actually be preferable. We're called not to make ourselves known, but to make Jesus known.