The scribes and Pharisees knew, partly from the words of this psalm, and partly from the looks of Christ, that they were spoken against them. So they sought in their rage and malice to lay hold on him; but they feared the people, with whom he was still popular. Thus, however, by his rebuke of the scribes and Pharisees, he prepared the way for that death which, within three days, they brought upon him. And the counsel of God was fulfilled for the redemption of men by the blood of Christ.
St. Matthew (Matthew 22:15) tells us that "the Pharisees took counsel how they might ensnare him ( ὅπως αὐτὸν παγιδεύσωσιν) in his talk;" namely, by proposing to him captious and insidious questions, which, in whatever way he might answer them, might expose him to danger. On this occasion they enlisted the Heredians to join them in their attack upon him. These Herodians were a sect of the Jews who supported the house of Herod, and were in favor of giving tribute to the Roman Caesar. They were so called at first from Herod the Great, who was a great supporter of Caesar. Tertullian, St. Jerome, and others say that these Herodiaus thought that Herod was the promised Messiah, because they saw that in him the scepter had departed from Judah (Genesis 49:10). Herod encouraged these flatterers, and so put to death the infants at Bethlehem, that he might thus get rid of Christ, lest any other than himself might be regarded as Christ. They said at it was on this account that he rebuilt the temple with so much magnificence. The Pharisees took, of course, altogether the other side, and stood forward as the supporters of the Law of Moses and of their national freedom. So, in order that they might ensnare him, they sent to him their disciples with the Herodians, and in the most artful manner proposed to him, apparently in good faith, a question which answer it how he might, would, as they hoped, throw him upon the horns of a dilemma. If he said that tribute ought to be given to Caesar, he would expose himself to the malice of the Jewish people, who prided themselves upon their freedom. If, on the other hand, he said that tribute ought not to be given to Caesar, he would incur the wrath of Caesar and of the Roman power.
St. Matthew (Matthew 22:18) says, "But Jesus perceived their wickedness, and said, Why tempt ye me, ye hypocrites?' You pretend that you are approaching me with a good conscience, sincerely desirous to know how you ought to act in this matter; when at the same time you are enemies alike of me and of God, and are thirsting for my blood, and are doing all in your power to torment me, and to entangle me by fraud. "The first virtue," says St. Jerome, "of the respondent is to know the mind of the questioner, and to adapt his answer accordingly." These Pharisees and Heredians flatter Christ that they may destroy him; but he rebukes them, that, if possible, be might save them. Bring me a penny, that I may see it. The Roman denarius was equal to about eight-pence halfpenny. This was the coin in which the tribute money was to be paid. It had stamped upon it the image of Tiberius Caesar, the then reigning Roman emperor. The cognomen of Caesar was first given to Julius Caesar, from whom it was devolved to his successors. The current coin of the country proved the subjection of the country to him whose image was upon it. Maimonides, quoted by Dr. John Lightfoot, says, "Wheresoever the money of any king is current, there the inhabitants acknowledge that king for their lord."