'Promise' in the Bible

Then said they, We will restore them, and will require nothing of them; so will we do, even as thou sayest. Then I called the priests, and took an oath of them, that they would do according to this promise.

Also I shook out my lap, and said, So God shake out every man from his house, and from his labor, that performeth not this promise; even thus be he shaken out, and emptied. And all the assembly said, Amen, and praised Jehovah. And the people did according to this promise.