The Old Testament Roots of Greek Mythology

Acts 14:11-14:11And when the people saw what Paul had done, they lifted up their voices, saying in the speech of Lycaonia, The gods are come down to us in the likeness of men.

12And they called Barnabas, Jupiter; and Paul, Mercurius, because he was the chief speaker.

13Then the priest of Jupiter, which was before their city, brought oxen and garlands unto the gates, and would have done sacrifice with the people.

14Which when the apostles, Barnabas and Paul, heard of, they rent their clothes, and ran in among the people, crying out,
- King James Version

Paul and Barnabas were called Jupiter and Mercury - the Greek equivalent of Jupiter is Zeus and the Greek equivalent of Mercury is Hermes.
Zeus was the Supreme Greek God,ruler of all the other Gods and men while Hermes was a messenger of the Gods and a son of Zeus. - Greek Mythology

Greek Mythology must have been very important and taken seriously at that time..

The New International Version reads:
Acts 14:11-14:11When the crowd saw what Paul had done, they shouted in the Lycaonian language, "The gods have come down to us in human form!" 12Barnabas they called Zeus, and Paul they called Hermes because he was the chief speaker. 13The priest of Zeus, whose temple was just outside the city, brought bulls and wreaths to the city gates because he and the crowd wanted to offer sacrifices to them.

14But when the apostles Barnabas and Paul heard of this, they tore their clothes and rushed out into the crowd, shouting:

In Acts 19 concerning Diana -
24For a certain man named Demetrius, a silversmith, which made silver shrines for Diana, brought no small gain unto the craftsmen;

25Whom he called together with the workmen of like occupation, and said, Sirs, ye know that by this craft we have our wealth.

26Moreover ye see and hear, that not alone at Ephesus, but almost throughout all Asia, this Paul hath persuaded and turned away much people, saying that they be no gods, which are made with hands:

27So that not only this our craft is in danger to be set at nought; but also that the temple of the great goddess Diana should be despised, and her magnificence should be destroyed, whom all Asia and the world worshippeth.

28And when they heard these sayings, they were full of wrath, and cried out, saying, Great is Diana of the Ephesians.
- King James Version

Acts 19:34-35:34But when they knew that he was a Jew (White/Adamic *Israelite*, not to be confused with the impostor serpent seed we know of today as "Jews."), all with one voice about the space of two hours cried out, Great is Diana of the Ephesians.

35And when the townclerk had appeased the people, he said, Ye men of Ephesus, what man is there that knoweth not how that the city of the Ephesians is a worshipper of the great goddess Diana, and of the image which fell down from Jupiter?

Again,Jupiter is the equivalent of Zeus and Diana is the Roman equivalent of the Greek Artemis.
Artemis in Greek Mythology was a daughter of Zeus(Jupiter) and slightly older twin sister of Apollo.She was the eternal virgin and huntress goddess.

Acts 17:34:34Howbeit certain men clave unto him, and believed: among the which was Dionysius the Areopagite, and a woman named Damaris, and others with them. - KJV
Dionysius is the Greek equivalent of Bacchus - Dionysius was a son of Zeus;Originally a wine God from Thrace..
1354. Dionusios dee-on-oo'-see-os from Dionusos (Bacchus); reveller; Dionysius, an Athenian:--Dionysius. - Strong's Greek

Thanks to Malachi83 at the Covenant Peoples Ministry forums for posting the above article there, as well as the contents of this post.

Note: I edited in a small comment in red above to correct any misinterpretation.