If a man vows a vow to the Lord or swears an oath to bind himself by a pledge, he shall not break and profane his word; he shall do according to all that proceeds out of his mouth.
You shall not use or repeat the name of the Lord your God in vain [that is, lightly or frivolously, in false affirmations or profanely]; for the Lord will not hold him guiltless who takes His name in vain.
Behold, when we come into the land, you shall bind this scarlet cord in the window through which you let us down, and you shall bring your father and mother, your brothers, and all your father's household into your house.