Oaths used for Binding to Performance of Any Particular Act

…and I will have you swear by the LORD, the God of heaven and the God of earth, that you will not take a wife for my son from the daughters of the Canaanites among whom I am dwelling,

…but will go to my country and my kindred to take a wife for my son Isaac.”

And Joseph made the sons of Israel take an oath and said, “God will surely attend to you, and then you must carry my bones up from this place.”

Now therefore, please swear to me by the LORD that you will indeed show kindness to my family, because I showed kindness to you. Give me a sure sign