'Aide' in the Bible

Jehu said to Bidkar his aide, “Pick him up and throw him on the plot of ground belonging to Naboth the Jezreelite. For remember when you and I were riding side by side behind his father Ahab, and the Lord uttered this oracle against him:

Sanballat sent me this same message a fifth time by his aide, who had an open letter in his hand.

Now Herod was very angry with the people of Tyre and Sidon. They came with one accord to him, and, having made Blastus, the king's personal aide, their friend, they asked for peace, because their country depended on the king's country for food.