What can we learn from the parable of the Prodigal Son? God’s compassion and forgiveness? The spiritual pride of the elder son? There are a lot of interpretations.
One of them is a free will issue.
One classic question: If God is omnipotent, then why does He allow us to make mistakes? Why does God let these things happen? The world has full of problems because of our mistakes.
One short, classic answer is that God gave us a free will. He created us with self-consciousness. We’re not dolls controlled.
We can make our own decisions. We can see the light, which means we can see the darkness, too. Without knowing the dark, we can’t see the light and vice versa. It’s up to us how we go about our life.
We unavoidably make mistakes because of our free will, which is supposed to be God’s precious gift. We’re all inherently prodigal sons.
The good news is God loves us unconditionally as long as we repent our mistakes.