Matthew 2:3

Through fear of losing his kingdom, he being a foreigner, and had obtained the sovereignty by violence. But why was all Jerusalem to be alarmed at the news of a king so long and so ardently expected? 1. Because the people, well acquainted with the cruelty of Herod, feared a more galling slavery. 2. Through apprehension of riots, and of a revolution, which could not be effected without bloodshed, as the Romans had such strong hold. They had also been so worn down with perpetual wars, that the most miserable servitude, with peace, was to the Jews an object rather of envy than deprecation. (Haydock)

V. How this enquiry was treated at Jerusalem. News of it at last came to court; and when Herod heard it he was troubled, v. 3. He could not be a stranger to the prophecies of the Old Testament, concerning the Messiah and his kingdom, and the times fixed for his appearing by Daniel's weeks; but, having himself reigned so long and so successfully, he began to hope that those promises would for ever fail, and that his kingdom would be established and perpetuated in spite of them. What a damp therefore must it needs be upon him, to hear talk of this King being born, now, when the time fixed for his appearing had come! Note, Carnal wicked hearts dread nothing so much as the fulfilling of the scriptures.

Verses 1-8 Those who live at the greatest distance from the means of grace often use most diligence, and learn to know the most of Christ and his salvation. But no curious arts, or mere human learning, can direct men unto him. We must learn of Christ by attending to the word of God, as a light that shineth in a dark place, and by seeking the teaching of the Holy Spirit. And those in whose hearts the day-star is risen, to give them any thing of the knowledge of Christ, make it their business to worship him. Though Herod was very old, and never had shown affection for his family, and was not himself likely to live till a new-born infant had grown up to manhood, he began to be troubled with the dread of a rival. He understood not the spiritual nature of the Messiah's kingdom. Let us beware of a dead faith. A man may be persuaded of many truths, and yet may hate them, because they interfere with his ambition, or sinful indulgences. Such a belief will make him uneasy, and the more resolved to oppose the truth and the cause of God; and he may be foolish enough to hope for success therein.