'Let Us' in the Bible

But that it may spread no further among the people, let us strictly threaten them, that they speak henceforth to no man in this name.

And some days after, Paul said to Barnabas, Let us go again and visit our brethren, in every city where we have preached the word of the Lord, and see how they do.

And there arose a great cry: and the scribes that were of the Pharisees' part arose, and contended, saying, We find no evil in this man: but if a spirit or an angel hath spoken to him, let us not fight against God.