'Waiting' in the Bible

On the seventh day, when the heart of the king was glad with wine, he gave orders to Mehuman, Biztha, Harbona, Bigtha, and Abagtha, Zethar, and Carcas, the seven unsexed servants who were waiting before Ahasuerus the king,

Then the servants who were waiting on the king said to him, Let search be made for some fair young virgins for the king:

Then Esther sent for Hathach, one of the king's unsexed servants whom he had given her for waiting on her, and she gave him orders to go to Mordecai and see what this was and why it was.

And when the king saw Esther the queen waiting in the inner room, looking kindly on her he put out the rod of gold in his hand to her. So Esther came near and put her fingers on the top of the rod.

And the king said, What honour and reward have been given to Mordecai for this? Then the servants who were waiting on the king said, Nothing has been done for him.

And the king's servants said to him, See, Haman is waiting in the outer room. And the king said, Let him come in.

Then Harbonah, one of the unsexed servants waiting before the king, said, See, the pillar fifty cubits high, which Haman made for Mordecai, who said a good word for the king, is still in its place in Haman's house. Then the king said, Put him to death by hanging him on it.