Matthew 2:10

Joy is but the natural consequence of desire satisfied: they had in their own country seen an extraordinary star, which, according to the rules of their own art, they might guess to be an indication of a great Prince born, or, by a Divine revelation, they might know to be so. This kindled in them a strong desire to go and pay a homage to him; upon this they take a long journey to Jerusalem. When they come there they were more fully confirmed, from the answer of the priests and scribes, that there was a Christ to be born in Bethlehem Judah. Thither they go. In their journey the same star they had before seen appears to them again, confirming both their former apprehensions, and, by its standing over Bethlehem, and a particular house in it, (to their apprehensions), they were fully confirmed that they had right instructions from Herod, and rejoiced in the satisfaction of their desires naturally, and possibly rejoiced spiritually in this matter of joy to all people, if they had (as is probable) a spiritual illumination, and believed that this Christ was also Jesus, one come to save both Jews and Gentiles from their sins.