Hermes, Herakles and Theseus, who are honored in the gymnasium and wrestling-ground according to a practice universal among Greeks, and now common among barbarians. (Pausanias, Description of Greece 4.32.1)

Above all other Gods they worship Mercury, and count it no sin on certain feast-days to include human victims in the sacrifices offered to him. Herakles and Mars they appease by offerings of animals, in accordance with ordinary civilized custom. Some of the Suebi sacrifice also to Isis. I do not know the origin or explanation of this foreign cult; but the Goddess’s emblem, being made in the form of a light warship, itself proves that her worship came in from abroad. The Germans do not think it in keeping with the divine majesty to confine Gods within walls or to portray them in the likeness of any human countenance. Their holy places are woods and groves, and they apply the names of deities to that hidden presence which is seen only by the eye of reverence. (Tacitus, Germania 9)

When morning was come they set up an eagle at the eastern gate, and erecting an altar of victory they celebrated appropriate rites with all due solemnity, according to their ancestral superstition: to the one whom they venerate as their God of Victory they give the name of Mars, and the bodily characteristics of Hercules, imitating his physical proportion by means of wooden columns, and in the hierarchy of their Gods he is the Sun, or as the Greeks call him, Apollo. From this fact the opinion of those men appears somewhat probable who hold that the Saxons were descended from the Greeks, because the Greeks call Mars Hirmin or Hermes, a word which we use even to this day, either for blame or praise, without knowing its meaning. (Widukind of Corvey, Deeds of the Saxons)

Among the rest of the Thracians it is the custom to sell their children for export and to take no care of their maidens, allowing them to have intercourse with any man they wish. Their wives, however, they strictly guard, and buy them for a price from the parents. To be tattooed is a sign of noble birth, while to bear no such marks is for the baser sort. The idler is most honored, the tiller of the soil most scorned; he is held in highest honor who lives by war and robbery. They worship no Gods but Ares, Dionysos, and Artemis. Their princes, however, unlike the rest of their countrymen, worship Hermes above all Gods and swear only by him, claiming him for their ancestor. The wealthy have the following funeral practices. First they lay out the dead for three days, and after killing all kinds of victims and making lamentation, they feast. After that they do away with the body either by fire or else by burial in the earth, and when they have built a barrow, they initiate all kinds of contests, in which the greatest prizes are offered for the hardest type of single combat. (Herodotos, Histories 5.6-8)

And again Hera would have destroyed the son of Zeus but Hermes caught him up, and carried him to the wooded ridge where Kybele dwelt. Moving fast, Hera ran swift-shoe on quick feet from high heaven; but he was before her, and assumed the eternal shape of first-born Phanes. Hera in respect for the most ancient of the Gods, gave him place and bowed before the radiance of the deceiving face, not knowing the borrowed shape for a fraud. So Hermes passed over the mountain tract with quicker step than hers, carrying the horned child folded in his arms, and gave it to Rheia, nurse of lions, mother of Father Zeus, and said these few words to the Goddess mother of the greatest: ‘Receive, Goddess, a new son of your Zeus! He is to fight with the Indians, and when he has done with earth he will come into the starry sky, to the great joy of resentful Hera! Indeed it is not proper that Ino should be nurse to one whom Zeus brought forth. Let the mother of Zeus be nanny to Dionysos – mother of Zeus and nurse of her grandson!’ This said he put off the higher shape of selfborn Phanes and put on his own form again, leaving Bakchos to grow a second time in Meter’s nurture. (Nonnos, Dionysiaka 9.136 ff)

Kallisto was loved by Zeus and mated with him. When Hera detected the intrigue she turned Kallisto into a bear, and Artemis to please Hera shot the bear. Zeus sent Hermes with orders to save the child Arkas that Kallisto bore in her womb. (Pausanias, Description of Greece 8.3.6)