In our OT passage we read the story of the wicked Nabal and his wise wife Abigail. What struck me when I read this story this time was the mention that Nabal was a Calebite. Caleb was a godly man, one of the only two spies to trust in God's promise of victory against all odds (the other being Joshua, who became the leader of Israel after Moses' death).
Nabal was nothing like his ancestor Caleb. This reminds us that there are no grandchildren of God, only children. We each have to commit to following Him, we don't get an "in" because of our heritage. We are not Christians by default because our parents or grandparents were believers. We won't coast into heaven riding anybody's coat tails.