'Washed' in the Bible

Then David arose from the earth, and washed, and anointed himself, and changed his clothing, and entered into the house of Jehovah and worshipped; then he came to his own house and required them to set bread before him, and he ate.

And Mephibosheth the son of Saul came down to meet the king. Now he had neither washed his feet, nor trimmed his beard, nor washed his clothes, from the day the king departed until the day he came again in peace.