But the king spared Mephibosheth the son of Jonathan, the son of Saul, because of the Lord’s oath that was between them, between David and Jonathan the son of Saul.
If a man makes a vow to the Lord, or swears an oath to bind himself by some agreement, he shall not break his word; he shall do according to all that proceeds out of his mouth.
unless, when we come into the land, you bind this line of scarlet cord in the window through which you let us down, and unless you bring your father, your mother, your brothers, and all your father’s household to your own home.