But the king spared Mefivoshet, the son of Yonatan the son of Sha'ul, because of the LORD's oath that was between them, between David and Yonatan the son of Sha'ul.
When a man vows a vow to the LORD, or swears an oath to bind his soul with a bond, he shall not break his word; he shall do according to all that proceeds out of his mouth.
Behold, when we come into the land, you shall bind this line of scarlet thread in the window which you did let us down by: and you shall gather to you into the house your father, and your mother, and your brothers, and all your father's household.