But the king spared Mephib´osheth, 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 vow a vow unto the Lord, or swear an oath to bind his soul with a bond; he shall not break his word, he shall do according to all that proceedeth out of his mouth.
Behold, when we come into the land, thou shalt bind this line of scarlet thread in the window which thou didst let us down by: and thou shalt bring thy father, and thy mother, and thy brethren, and all thy father's household, home unto thee.