'Messengers' in the Bible

From Kadesh Moses sent messengers to the king of Edom: "Thus your brother Israel has said, 'You know all the hardship that has found us;

Israel sent messengers to Sihon, the king of the Amorites, saying,

He sent messengers to Balaam son of Beor [at] Pethor, which [is] by the river, in the land of the children of his people, to summon him, saying, "Look! A people went out from Egypt. Look! They cover {the surface of the land}; they [are about] to dwell opposite me.

Balaam said to Balak, "Did I not speak to your messengers whom you sent to me, saying,