'Let Us' in the Bible

And Ahab said to Obadiah, Come, let us go through all the country, to all the fountains of water and all the rivers, and see if there is any grass to be had for the horses and the transport beasts, so that we may be able to keep some of the beasts from destruction.

And get together another army like the one which came to destruction, horse for horse, and carriage for carriage; and let us make war on them in the lowlands, and certainly we will be stronger than they. And he gave ear to what they said, and did so.

Then his servants said to him, It is said that the kings of Israel are full of mercy: let us then put on haircloth, and cords on our heads, and go to the king of Israel; it may be that he will give you your life.

Then Jehoshaphat said to the king of Israel, Let us now get directions from the Lord.