'Let Us' in the Bible

And they approached Zerubbabel and the heads of the {families}, and they said to them, "Let us build with you. Like you, we seek your God and have been sacrificing [to him] from the days of Esarhaddon the king of Assyria who brought us up here.

So now let us make a covenant with our God to send away all of these women and their offspring, according to the advice of my lord and those who tremble at the commandment of our God. Let it be done according to the law.