'Concerning' in the Bible

All the king's servants who were in the king's gate bowed down, and paid homage to Haman; for the king had so commanded concerning him. But Mordecai didn't bow down or pay him homage.

Therefore they called these days "Purim," from the word "Pur." Therefore because of all the words of this letter, and of that which they had seen concerning this matter, and that which had come to them,