'Let Us' in the Bible

Then answered Peter, and said to Jesus, "Master here is good being for us. If thou wilt, let us make here three tabernacles, one for thee, and one for Moses, and one for Elijah."

But when the husbandmen saw the son, they said among themselves, 'This is the heir: come on, let us kill him, and let us take his inheritance, to ourselves.'

Rise, let us be going: Behold, he is at hand that shall betray me."

Others said, "Let be: let us see whether Elijah will come and deliver him."