'Swear' in the Bible

And now, please swear [an oath] to me by the Lord, since I have shown you kindness, that you also will show kindness to my father’s household (family), and give me a pledge of truth and faithfulness,

The men said to her, “We shall be blameless and free from this oath which you have made us swear,

But if you tell [anyone] this business of ours, we shall be blameless and free from the oath which you made us swear.”

so that you do not associate with these nations which remain among you, or mention the name of their gods, or make anyone swear [an oath by them], or serve them, or bow down to them.