Although the God of Singing's words truly enraged the devils, his main purpose was to tell his teammates that even if he died, he would just be returning to his original form and they need not grieve for him.
Miliel's teammates quickly understood what he meant and finally set their minds at ease to give the pope a thorough thrashing.
After all, they still had Miliel's blessings on them! If they couldn't kill the Devil King, could they not take down a mere lackey?
The elf archers had already fired several volleys, and they finally found the devil's weak point.
The fight would probably be over in a few minutes.
As for that companion who said everything but the truth, since he wouldn't die, who would bother with him!
The God of Singing visibly relaxed, he wasn't really without attack spells, just slower, and most of them entangling.
But as long as his teammates didn't come back to their deaths, Miliel could happily end this journey.