'Concerning' in the Bible

And all the king's servants, that were in the king's gate, bowed, and reverenced Haman: for the king had so commanded concerning him. But Mordecai bowed not, nor did him reverence.

Wherefore they called these days Purim after the name of Pur. Therefore for all the words of this letter, and of that which they had seen concerning this matter, and which had come unto them,