Esther 3:1-2

1After some time, King Xerxes gave one of his officers greater authority. The officer's name was Haman. He was the son of Hammedatha, a descendant of Agag. Haman became the most important officer who served the king.

2The king commanded that all the royal officers at the king's gate must bend down low down to Haman. So they all gave Haman honour when he passed them. Only Mordecai would not bend down and give honour to Haman.