'Let Us' in the Bible

But, so that it spread no further among the people, let us strictly threaten them, that they speak to no man in this name from now on.

And some days afterward, Paul said to Barnabas, Let us go again and visit our brothers in every city where we have announced the Word of the Lord, to see how they are holding to it.

And there arose a great cry. And the scribes who were on the Pharisees' side arose and strove, saying, We find no evil in this man. But if a spirit or an angel has spoken to him, let us not fight against God.