The wise men's focus on the star shows they were astrologers. Their knowledge of the Old Testament (possibly Numbers 24:17) suggests they came from Babylonia, where many Jews lived. These men were Gentiles (non-Jewish people), which hints at God accepting Gentiles in his kingdom (Matthew 8:11–12; 15:21–28; 28:16–20).
All through the Gospel, unlikely Gentiles worship the Jewish Messiah, while many Jewish leaders (Herod, the high priests, the teachers of religious law, and the Pharisees) oppose him.