'Messenger' in the Bible

Then Jezebel sent a messenger to Elijah, saying, "Thus may the gods do [to me], and may they add [to it], surely at this time tomorrow I will make your life as the life of one of them!"

Then the messenger who had gone to summon Micaiah said to him, "Please now, the words of the prophet are {unanimously} favorable to the king. Please let your words be as one word with them, and speak favorably."