penitence - regret for your wrongdoing or sinning; contrition; repentance.
Falstaff: But to say I know more harm in him than in myself were to say more than I know. That he is old, the more the pity, his white hairs do witness it; but that he is, saving your reverence, a whoremaster, that I utterly deny. If sack and sugar be a fault, God help the wicked! If to be old and merry be a sin, then many an old host that I know is damned: if to be fat be to be hated, then Pharaoh’s lean kine are to be loved. No, my good lord; banish Peto, banish Bardolph, banish Poins; but for sweet Jack Falstaff, kind Jack Falstaff, true Jack Falstaff, valiant Jack Falstaff, and therefore more valiant, being, as he is, old Jack Falstaff, banish not him thy Harry’s company: banish not him thy Harry’s company: banish plump Jack, and banish all the world.