'Messenger' in the Bible

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

Then the messenger who went to summon Micaiah said to him, “Listen carefully, the words of the prophets are unanimously favorable to the king. Please let your words be like the word of one of them, and speak favorably.”