'Let Us' in the Bible

Be of good courage, and let us play the man for our people, and for the cities of our God. And LORD do that which seems good to him.

And the king said to Absalom, No, my son, let us not all go, lest we be burdensome to thee. And he pressed him. However he would not go, but blessed him.

And David said to all his servants who were with him at Jerusalem, Arise, and let us flee, for otherwise none of us shall escape from Absalom. Make speed to depart, lest he overtake us quickly, and bring down evil upon us, and smit

Then Absalom said, Call now Hushai the Archite also, and let us hear likewise what he says.

And David said to Gad, I am in a great strait. Let us fall now into the hand of LORD, for his mercies are great, and let me not fall into the hand of man.