"The others fled. The other demons, Alastair and his disciples. Souls who had only tortured for a week wept in my presence but you didn't. You saw salvation and even if it hurt to touch, even if it burned, you wanted it."

Cas lets Dean go and takes a step back. It isn't just determination on his face now, it's a glowing pride that can't be replicated, can't be compared to any other relationship; fatherly, brotherly, nothing. Castiel is the angel who raised the Righteous Man, and Castiel is the angel to whom the Righteous Man reached. "I will drive until I believe the Leviathan will be unable to find us. I promise that I'll be very gentle with your car."