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thy vs. thine

thy

[ thahy ]
pronoun
  1. the possessive case of thou (used as an attributive adjective before a noun beginning with a consonant sound): thy table.

thine

[ thahyn ]
pronoun
  1. the possessive case of thou1 used as a predicate adjective, after a noun or without a noun.
  2. the possessive case of thou1 used as an attributive adjective before a noun beginning with a vowel or vowel sound: thine eyes; thine honor.
  3. that which belongs to thee: Thine is the power and the glory.