Can I really trust God?
The OT scriptures are the story of one God, creator of the world and all people, a living, involved God who cares about his creatures, all that destroys life and the hope that life can be renewed, healed, made right. The very center of scripture is the affirmation that God is one. That must mean God belongs as much to all nations as to Jews. Yes, God working through Israel's long history, narrowing it down ultimately to the messiah embodying Israel and the whole world.