'Stand in' in the Bible

"I looked for a man from among them who would repair the wall and stand in the gap before me on behalf of the land, so that I would not destroy it, but I found no one.

then I will bring you down to bygone people, to be with those who descend to the pit. I will make you live in the lower parts of the earth, among the primeval ruins, with those who descend to the pit, so that you will not be inhabited or stand in the land of the living.