The Facts on Astrology (Harvest House, 1988) p. 22-23
What does the Bible say about astrology?
Christianity has historically been opposed to astrology for three biblical reasons. First the Bible explicitly rejects astrology by name as a futile (worthless) practice. Proof of this is Isaiah 47:13-14….” Here we can see that first, God is condemning the counsel of the Babylonian astrologers. Second, God says their predictions based on the stars will not save them from what is coming: divine judgment. Third, God says the counsel of the astrologers is not only worthless to others but it cannot even save the astrologers themselves.*
The second biblical reason Christianity has historically opposed astrology is because God forbids occult practices. Astrology is basically divination. Divination is defined by Webster’s New Collegiate Dictionary (1961) as “the act or practice of foreseeing or foretelling future events or discovering hidden knowledge.” In Webster’s New World Dictionary (1962) it is defined as “the art or practice of trying to foretell the future or the unknown by occult means.” Because it is an occult art, God condemns divination as evil and as an abomination to Him and says it leads to contact with evil spirits called demons (Deut. 18:9-13; 1 Cor. 10:20).
Finally, the Bible rejects astrology because it leads people to the horrible transference of their allegiance from the infinite God of the universe to the things which He has made. It is a bit like ascribing all the credit, honor and glory to the masterpieces of art themselves, completely forgetting the great artist who made them. No astrologer, dead or living, would have ascribed the works of Rembrandt or Picasso to the paintings themselves, yet they routinely do this with God. And yet God is infinitely more worthy of honor than men, a God who “made heaven and earth” and in whose hands is their very life’s breath (Gen. 1:1; Dan. 5:22-23).
*For full documentation, please see The Facts on Astrology.