'For Us' in the Bible

But Jesus made answer, saying to him, Let it be so now: because so it is right for us to make righteousness complete. Then he gave him baptism.

And Peter made answer and said to Jesus, Lord, it is good for us to be here: if you will let me, I will make here three tents, one for you, and one for Moses, and one for Elijah.

But the wise made answer, saying, There may not be enough for us and you; it would be better for you to go to the traders and get oil for yourselves.