'Swear' in the Bible

They replied, "We will return these things, and we will no longer demand anything from them. We will do just as you say." Then I called the priests and made the wealthy and the officials swear to do what had been promised.

So I entered a complaint with them. I called down a curse on them, and I struck some of the men and pulled out their hair. I had them swear by God saying, "You will not marry off your daughters to their sons, and you will not take any of their daughters as wives for your sons or for yourselves!