'Messenger' in the Bible

Then Jezebel sent a messenger to Elijah, saying, “So may the gods do to me and even more, if I do not make your life as the life of one of them by tomorrow about this time.”

Then the messenger who went to summon Micaiah spoke to him saying, “Behold now, the words of the prophets are uniformly favorable to the king. Please let your word be like the word of one of them, and speak favorably.”