“And thus I preach against the very viceI make my living out of—avarice." Lines 23-24. The Pardoner convinces peopleto buy certificates of forgivenessby reciting his moral stories.
"Come forward, Host, you shall be the first to pay,And kiss my holy relics right away.Only a groat. Come on, unbuckle your purse!" Lines 338-340 In the story he's making them give him money so that their sins could be "forgiven".
"And all my antics are a joy to see. The curse of avarice and cupidity Is all my sermon, for it frees the pelf.Out come the pence, and specially for myself,For my exclusive purpose is to win And not at all to castigate their sin." Lines 15-20 In those lines it shows that he couldn't care less about the people and just wants the money.
"The youngest, as he ran towards the town, Kept turning over, rolling up and down Within his heart the beauty of those bright New florins, saying, “Lord, to think I might Have all that treasure to myself alone!" Lines 236-240 It shows that the kid wants all the treasure to himself which makes him greedy.
"Let me preach and beg from kirk to kirk And never do an honest job of work,No, nor make baskets, like St. Paul, to gain A livelihood. I do not preach in vain." Lines 39-42 Here is says that the sermon wants to keep doing what he's doing and get money from the poor.
"And so the Fiend, our common enemy,Was given power to put it in his thought That there was always poison to be bought,And that with poison he could kill his friends." Line 243-246 Here it shows that the kid has thoughts of killing his two other friends to get all the treasure for himself