'For Us' in the Bible

Now after the death of Joshua, the children of Israel made request to the Lord, saying, Who is to go up first to make war for us against the Canaanites?

And the men of Ephraim came and said to him, Why did you not send for us when you went to war against Midian? And they said sharp and angry words to him.

Now the men of Ephraim came together and took up arms and went over to Zaphon; and they said to Jephthah, Why did you go over to make war against the children of Ammon without sending for us to go with you? Now we will put your house on fire over you.

Now when their hearts were full of joy, they said, Send for Samson to make sport for us. And they sent for Samson out of the prison-house, and he made sport before them; and they put him between the pillars.

Then they said, Do get directions from God for us, to see if the journey on which we are going will have a good outcome.