'For Us' in the Bible

And Peter said to Jesus, "Rabbi [i.e., Teacher], it is good for us to be here. Let us build three small shelters, one for you, one for Moses and one for Elijah." [See note at Matt. 17:4]

For the person who is not against us is for us.

Now James and John, the sons of Zebedee, came over to Jesus and said to Him, "We would like you to do for us whatever we ask you."

And the owner himself will show you a large upstairs room all furnished and ready. Make preparations for us there [i.e., to observe the Passover meal]."

They were questioning among themselves, "Who will roll away the stone from the entrance of the cave for us?"