Question about Preacher comic book series
I'm starting to read the Preacher comic book series. There's something about the story that isn't clear to me. In issue #4, Standing Tall, when Jesse first meets the Saint of Killers, why exactly doesn't Jesse try to kill him by simply telling him to die? I know Jesse wanted information first, and the Saint made Deblanc appear to give info. But after Deblanc leaves and before the Saint leaves, why didn't Jesse command him to die? The Saint was wakened to kill Jesse. Was it because he realized Jesse's power (when he made Deblanc appear) and changed his mind and/or plans, and Jesse was generous with who he killed as a preacher?
Also, please don't spoil the further issues for me. Thanks.