'Thine' in the Bible

Let thine eyes be on the field that they do reap, and go thou after them: have I not charged the young men that they shall not touch thee? and when thou art athirst, go unto the vessels, and drink of that which the young men have drawn.

And he shall be unto thee a restorer of life, and a nourisher of thine old age, for thy daughter-in-law, who loveth thee, who is better to thee than seven sons, hath borne him.