How to use "sunk" in a sentence

Yet, if God wills that it continue, until all the wealth piled by the bondman's two hundred and fifty years of unrequited toil shall be sunk, and until every drop of blood drawn with the lash, shall be paid by another drawn with the sword, as was said three thousand years ago, so still it must be said "the judgments of the Lord, are true and righteous altogether."

Javert was silent for some moments, his chin sunk in the collar of his overcoat

That boat was sunk on purpose.'

He had almost sunk to the level of an animal