The significant quote is when Jack tells his followers to bring Ralph and Piggy some meet, thus establishing his dominance on the island.
The main relationship shift in chapter 9 is actually a power shift. Ralph was the leader, until Jack questioned his authority and built his tribe up to a point of strength. In this chapter, Ralph and Piggy are bathing and they visit Jack’s feast. He and his tribe have covered themselves with war paint and killed a pig.
Jack stood up and waved his spear.
“Take them some meat.”
The boys with the spit gave Ralph and Piggy each a succulent chunk. They took the gift, dribbling. So they stood and ate beneath a sky of thunderous brass that rang with the storm-coming. (ch 9)
The spears, meat, and war-paint distinguish Jack and his followers as the savages. Ralph and Piggy choose to distance themselves from the group dancing around the fire. Piggy says trouble is coming, and it is. First Simon and then Piggy are the casualties of Jack’s senseless violence.