'Clear' in the Bible

And if the woman be not willing to follow thee, then thou shalt be clear from this my oath. Only thou shalt not bring my son thither again.

Then shalt thou be clear from my oath, when thou comest to my kindred. And if they give her not to thee, thou shalt be clear from my oath.

And Judah said, What shall we say unto my lord? what shall we speak? or how shall we clear ourselves? God hath found out the iniquity of thy servants: behold, we are my lord's bondmen, both we, and he also in whose hand the cup is found.