'Oath' in the Bible

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

Then shalt thou be clear from this my oath, when thou comest to my kindred; and if they give not thee one, thou shalt be clear from my oath.

Sojourn in this land, and I will be with thee, and will bless thee; for unto thee, and unto thy seed, I will give all these countries, and I will perform the oath which I sware unto Abraham thy father;

And they said, We saw certainly that the LORD was with thee: and we said, Let there be now an oath betwixt us, even betwixt us and thee, and let us make a covenant with thee;

And Joseph took an oath of the children of Israel, saying, God will surely visit you, and ye shall carry up my bones from hence.