The second chapter of Matthew chapter two began by introducing the magi into the storyline. As they journey toward the Messiah, they seek help from Herod, who would rather eliminate any opposition to his power.
The visit of the magi gave Herod the information he needed. He now knew where the Messiah was to be born, confirmed by the chief priests and scribes. Now, he decides to interrogate the magi further, to determine just when the star appeared. The purpose of this question was to find the age of Jesus, to narrow down his search. He was clever and crafty, but he sought Christ with wrong motives. His ingenuity was impressive, using the resources at his disposal, both the magi and the religious leaders, to discover the exact timing of the birth of Jesus.
From here, his deceit only gets worse. Herod sent them to Bethlehem. His goal was to use the magi to even further narrow his search for the child. His purpose was to find and kill the baby King, not worship Him! According to Jewish history, Herod had Aristobulus, the high priest, drowned by his companions while bathing. His political aspirations knew no bounds, using even religion to gain his own desires.
The magi continued on, probably suspecting the true nature of Herod. This would be confirmed to them by God later. For now, they continued to follow the star. In verse 9, Matthew states that it “stood over the place where the Child was.” For a star or planet to stand over any place or person, it must be in the zenith and have an altitude of ninety degrees. Even then, the distance is so great that it would be difficult to see it point to one specific location, even if it were a bright conjunction of planets. God can, and has, used naturally occurring events to make himself known, but this is probably a completely supernatural event, for the sole purpose of special revelation. Guided by such a star, the magi found Bethlehem by night and rejoiced.