We miss that Jesus is saying this. He sees the desperation of mankind firsthand, because he is here walking among us. He sees the things we keep in darkness, rotting away our souls because they do not see light. Here he recognizes not only His purpose and mission, but pauses to comment on the love His father has not only for him, but for us. In the midst of commenting on the darkness in us, Jesus speaks of God's immeasurable love for us - that he would do everything necessary to buy us back. There is no ransom He will not pay to get us out of darkness.
For God so loved this mess, He gave everything for her.
Jesus says here: He sent me to buy you back.
I wish we did a better job communicating this to the world. That it's not about following rules or being good or getting things right. It's about being prisoner to our own darkness, and someone coming who can set us free. All because of love. Not obligation or duty or to drag us around as a slave afterward. He simply loves us that much, and wants us free from darkness.