'Aware' in the Bible

You also should be aware that it is not permitted to place tax, tribute, or duty upon all of the priests, the Levites, the singers, the doorkeepers, the temple servants, and other servants of the house of God.

and said to him, "{Are you at all aware} that Baalis, the king of the {Ammonites}, has sent Ishmael the son of Nethaniah, to kill you?" But Gedaliah the son of Ahikam would not believe them.