2 Kings 10:24

And he went in to offer sacrifices and whole-burnt-offerings; and Ju set for himself eighty men without, and said, Every man who shall escape of the men whom I bring into your hand, the life of him [that spares him] shall go for his life.

And when they went in to offer sacrifices and burnt offerings, Jehu appointed fourscore men without, and said, If any of the men whom I have brought into your hands escape, he that letteth him go, his life shall be for the life of him.

So they went in to offer sacrifices and burnt offerings. Now Jehu had appointed for himself eighty men outside, and said, “If any of the men whom I bring into your hands escape, he who lets him go, his life shall be for the life of him.”