How does the author use foreshadowing in The Warden?

In Chapter Three, the narrator foreshadows how the beadsmen will lose something valuable when he says, "Poor old men; whoever may be righted or wronged by this injury, they at any rate will assuredly be only injured; to them it can only be an unmixed evil" (37). They end up losing contentment, part of their allowance, and a warden who takes care of them and loves them.