Noma: I couldn't do it. I couldn't do it. Michael: Of all who serve, you hold the highest place in my heart. Why did you let him live? Noma: I was going to do it, but right before my sword fell I felt him. Our Father. His presence all around the baby. It was so strong.
The child's death will break Michael's fever over the humans and bring him back to our cause. This extermination will work, which is why Father gave only me the seal.