To stay alive, Job spilled everything that he knew. There was no doubt that he was scared to die. He had unintentionally realized that the previous boss, the last to the previous boss, and even the third previous boss of Inferno Ring were all named Job. More importantly, all these Jobs had never shown themselves to the outsiders.
This meant that, without him, the mysterious person could still get more people named Job to replace him.
That said enough about the most terrifying fact—he could be killed anytime like the rest of the Jobs in the past.
Now that Yun Jian and others were invading and wiping out the Inferno Ring, Job thought he could come clean. He was not scared anymore—he would die either way. He might as well tell Yun Jian and Si Yi everything and begged for himself to be spared.