'Let Us' in the Bible

Let us lie down in our shame;let our disgrace cover us.We have sinned against the Lord our God,both we and our fathers,from the time of our youth even to this day.We have not obeyed the voice of the Lord our God.”

Rise up, let’s attack by night.Let us destroy her fortresses.”

Why are we just sitting here?Gather together; let us enter the fortified citiesand perish there,for the Lord our God has destroyed us.He has given us poisoned water to drink,because we have sinned against the Lord.