“And about the beast. When we kill we’ll some of the kill for it. Then it won’t bother us, maybe.”
This quote appears during a meeting between Jack and the choir boys, during which he announces that they'll all be hunters and he'll be their chief. After he lays out his plans—moving to a new side of the island, getting more boys to join their crew, killing a pig, and throwing a feast—he announces that they'll leave part of their slaughtered prey as a kind of sacrificial offering for the beast. This declaration positions the beast as an almost god-like figure who must be appeased, and it reveals that the boys are allowing their fear to dictate their actions and beliefs.
Read an essay about how Jack uses the beast to manipulate and control the other boys.
The head remained there, dim-eyed grinning faintly, blood blackening between the teeth. All at once they were running away, as fast as they could, through the forest toward the open beach.
This quote appears in the passage during which Jack and the hunters kill and decapitate a pig, then mount its head on a stick, Jack then declaring that it's a gift for the beast. This gruesome object is the Lord of the Flies, and it embodies the boys' horror of their own violence. Terrified by what they've created, the boys flee the glade, hinting that their fear of the beast is actually a fear of themselves and the savagery within them.
Read more about the Lord of the Flies as a symbol.
At last Simon gave up and looked back; saw the white teeth and dim eyes, the blood – and his gaze was held by that ancient, inescapable recognition.
Here, Simon finally stares at the grotesque pig's head—the Lord of the Flies—after trying his best not to look at it. As the most sensitive and emotionally intuitive boy on the island, Simon is more deeply affected by this monstrous object than anyone else, and he has a horrifying realization: the true beast is not a monster prowling the island, but the inherent brutality that lurks within the boys themselves, and Jack and his hunters have now fully embraced their savage instincts.