'Let Us' in the Bible

Which say, It is not near; let us build houses: this city is the caldron, and we be the flesh.

And {what you are planning}, surely it will not be--that you are saying, 'Let us be like the nations, like the clans of the lands, {serving wood and stone}!'

"And thou, son of man, the children of thy people that talk of thee by the walls and in the doors of their houses, saying one to another, 'Come, let us hear, what word is gone forth from the LORD' -