First of all, it helps to establish who these three men were. The Greek word translated as Magi or Wise Men is ma'goi. The Catholic reference work Lexikon für Theologie und Kirche notes that the Greek word ma'goi literally means "ones having secret knowledge of astrology." Justin Martyr, Origen, and Tertullian each understood the word to mean "astrologer." Modern Bible translations also use "astrologers" at Matthew 2:1, 7.—The Living Bible; An American Translation.
So what does that have to do with anything? Well, would God have led astrologers to his son? Notice what the Encyclopedia Americana (1977), Vol. 2, p. 557 says about the origin of astrology: "Western astrology can be traced directly to the theories and practices of the Chaldeans and Babylonians of the 2000's B.C." And the Encyclopedia Britannica (1911), Vol. II, p. 796 relates: "In Babylonia as well as in Assyria as a direct offshoot of Babylonian culture . . . astrology takes its place in the official cult as one of the two chief means at the disposal of the priests . . . for ascertaining the will and intention of the gods, the other being through the inspection of the liver of the sacrificial animal. . . . The movements of the sun, moon and five planets were regarded as representing the activity of the five gods in question, together with the moon-god Sin and the sun-god Shamash, in preparing the occurrences on earth."
So how does God feel about these practices? In Deuteronomy 18:10-12 the commandment is recorded: "Let no one be found among you who...practices divination or sorcery, interprets omens...Anyone who does these things is detestable to the LORD" - NIV. So it's made very clear that these men, because of their profession and practices, were detestable to the Lord, and therefore, he would not actively participate in directing them to be with his son.
Another thing that needs to be considered is the accuracy with which the star led them to Jesus. It "came and stood over where the young child was" and led them to the very place, not just the general area, where Jesus was at. (Matt. 2:9, KJV) Is it reasonable to conclude that these astrologers, who came from the East, 'accidentally' went to Jeruselum some 10 miles north of Bethlehem? Also, when they arrived in Jeruselum they had to ask where the child was, thus gaining the attention of King Herod, the one who would try to kill Jesus. Only after that was accomplished did the star then lead them to Jesus with pinpoint accuracy.
As to the "star" (Gr., a·ster') seen by them, many suggestions have been given as to its having been a comet, a meteor, a supernova, or, more popularly, a conjunction of planets. None of such bodies could logically have 'come to a stop above where the young child was,' thereby identifying the one house in the village of Bethlehem where the child was found. It is also notable that only these pagan astrologers "saw" the star. Their condemned practice of astrology and the adverse results of their visit, placing in danger the life of the future Messiah, certainly allow for, and even make advisable, the consideration of their having been directed by a source adverse to God's purposes as relating to the promised Messiah. It is certainly reasonable to ask if the one who "keeps transforming himself into an angel of light," whose operation is "with every powerful work and lying signs and portents," who was able to make a serpent appear to speak, and who was referred to by Jesus as "a manslayer when he began," could not also cause astrologers to 'see' a starlike object that guided them first, not to Bethlehem, but to Jerusalem, where resided a mortal enemy of the promised Messiah.—2Co 11:3, 14; 2Th 2:9; Ge 3:1-4; Joh 8:44.
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