'Concerning' in the Bible

Governor Rehum and Shimshai the scribe wrote a letter concerning Jerusalem to King Artaxerxes as follows:

Accordingly, with your approval we suggest that a search be conducted within the king's treasury at Babylon to verify whether or not King Cyrus ever issued such a decree to reconstruct this Temple of God in Jerusalem. Then please notify us concerning the king's pleasure in this matter.

Here is a copy of the letter that King Artaxerxes gave to Ezra, the priest-scribe, a scholar in matters concerning the commandments of the LORD and concerning his statutes pertaining to Israel:

From: Artaxerxes, King of Kings To: Ezra, the Priest, a scholar in matters concerning the laws of the God of Heaven Greetings!

You have authority to act for the king and for his Council of Seven to conduct an inquiry concerning Judah and Jerusalem in accordance with the Law of your God, which is in your possession.