'Thine' in the Bible

But the righteousness of faith speaks thus: Do not say in thine heart, Who shall ascend to the heavens? that is, to bring Christ down;

that if thou shalt confess with thy mouth Jesus as Lord, and shalt believe in thine heart that God has raised him from among the dead, thou shalt be saved.

Lord, they have killed thy prophets, they have dug down thine altars; and I have been left alone, and they seek my life.

If therefore thine enemy should hunger, feed him; if he should thirst, give him drink; for, so doing, thou shalt heap coals of fire upon his head.