The Iliad 24.329–333

back then to Ilios turned his sons and his daughters' husbands; howbeit the twain were not unseen of Zeus, whose voice is borne afar, as they came forth upon the plain, but as he saw the old man he had pity, and forthwith spake to Hermes, his dear son: Hermes, seeing thou lovest above all others to companion a man,and thou givest ear to whomsoever thou art minded up, go and guide Priam unto the hollow ships of the Achaeans in such wise that no man may see him or be ware of him among all the Damans, until he be come to the son of Peleus.