Thy - your (interchanged with 'thine' based on how it sounds in a sentence) ... thy friend, or is he my friend?
thine - your ... it is thine, or is it mine?
thou - you (subject) ... thou knowest
thee - you (object) ... i hear thee
ye - you all (ie you plural) ... ye citizens
Sir Walter Scott, Ivanhoe: "the reversal of thy arms, the dishonour of thine ancestry, the degradation of thy rank".
to thine own self, pierced thine heart, thine inheritance ... and ... thy possession
‘his spirit will take courage from thine’;‘inquire into thine own heart’;
'I am thine'