'Let Us' in the Bible

And Peter, having answered, said to Jesus, Lord, it is good for us to be here: let us make here three tents; one for thee, and one for Moses, and one for Elias.

And the farmers, seeing the son, said among themselves, This is the heir; come, let us kill him, and possess his inheritance.

Be aroused, let us lead forth; behold, he delivering me up, has drawn near.