'For Us' in the Bible

And hath raised up a horn of salvation for us, in the house of his servant David:

And it came to pass, as they departed from him, Peter said to Jesus, Master, it is good for us to be here: and let us make three tabernacles; one for thee, and one for Moses, and one for Elijah: not knowing what he said.

And Jesus said to him, Forbid him not: for he that is not against us, is for us.

Is it lawful for us to give tribute to Cesar, or not?

And he sent Peter and John, saying, Go and prepare for us the passover, that we may eat.