'For Us' in the Bible

And it came to pass when Joshua was by Jericho, that he lifted up his eyes and looked, and behold, there stood a man before him with his sword drawn in his hand. And Joshua went to him, and said to him: Art thou for us, or for our enemies?

And the children of Joseph said, The hill-country will not be enough for us; and all the Canaanites that dwell in the land of the valley have chariots of iron, those that are of Beth-shean and its dependent villages, and those that are in the valley of Jizreel.

Is the iniquity of Peor too little for us? from which we are not cleansed until this day, although there was a plague in the assembly of Jehovah.