Amos having shown that he must obey God, who had committed to him the office of teaching, now turns his discourse to Amaziah, and points out what he would gain by his insolence in daring to forbid a Prophet, an ambassador of the God of heaven, to proclaim what he had in command. As, then, Amaziah had proceeded into such a degree of rashness or rather of madness Amos now assails him and says, Hear then now the word of Jehovah He sets here the word or the decree of God in opposition to the prohibition of Amaziah: for the ungodly priest had forbidden God’s servant to proclaim his words any more in the land of Israel: “Who art thou? Thou indeed thus speakest; but God will also speak in his turn.” He shows, at the same time, the difference between the speech of Amaziah and the word of God: the impostor had indeed attempted to terrify the holy man so as to makehim to desist from his office, though the attempt was vain; but Amos shows that God’s word would not be without effect: “Whether I hold my peace or speak,” he seems to say, “this vengeance is suspended over thee.” But he, at the same time, connects God’s vengeance with his doctrine; for this was also necessary, that the ungodly priest might know that he gained nothing else, by attempting to do everything, than that he had doubly increased the vengeance of God.
There is, therefore, great emphasis in these words, Now hear the word of Jehovah thou who sayest, Prophesy not. Amaziah was indeed worthy of being destroyed by God a hundred times, together with all his offspring: but Amos intimates that God’s wrath was especially kindled by this madness, — that Amaziah dared to put a restraint on God, and to forbid his Spirit freely to reprove the sins of the whole people. Since, then, he proceeded so far, Amos shows that he would have justly to suffer the punishment due to his presumption, yea, to his furious and sacrilegious audacity, inasmuch as he set himself up against God, and sought to take from him his supreme authority, for nothing belongs more peculiarly to God than the office of judging the world; and this he does by his word and his Prophets. As, then, Amaziah had attempted to rob God of his own right and authority, the Prophet shows that vengeance had been thereby increased: Thou then, who sayest, Prophesy not against Israel, and speak not, hear the word of Jehovah
Remarkable is this passage, and from it we learn that nothing is better for us, when God rebukes us, than to descend into our own consciences, and to submit to the sentence which proceeds from his mouth, and humbly to entreat pardon as soon as he condemns us: for if we be refractory, God will not cease to speak, though we a hundred times forbid him; he will therefore go on notwithstanding our unwillingness. Further, we may vomit forth many blasphemies; but what can our clamorous words do? The Lord will, at the same time, speak with effect; he will not scatter his threatening in the air, but will really fulfill what proceeds from his mouth; and for this reason Paul compares heavenly truth to a sword, for vengeance is prepared for despisers. We ought therefore to take notice of this in the Prophet’s words, — that when profane men attempt to repel every tenth and all threatening, they gain nothing by their perverseness; for the lord will exercise his own right; and he will also join to his word, as they say, its execution. Thou then who sayest, Prophesy not, hear the word of Jehovah; though thou mayest growl, yet God will not be hindered by these thy commands; but he will ever continue complete in his own authority.” And he mentions word, as we have already said, to show that the truth, with which the ungodly contend, is connected with the power of God. God might indeed destroy all the unbelieving in silence, without uttering his voice; but he will have his Word honored, that the ungodly may know that they contend in vain, while they vomit forth their rage against his word, for they will at length find that in his word is included their condemnation.
Now, when he says, Prophecy not against Israel, and speak not against the house of Isaac, we may learn again from these words, that the word Isaac is used by the Prophet by way of concession; for the people of Israel were then wont to adduce the example of this holy patriarch. Thus superstitious men, neglecting the law of God, the common rule, ever turn aside to the examples of the saints; and they do this without any discrimination; nay, as their minds are perverted, when anything has been wrongfully done by the fathers, they instantly lay hold on it: and then, when there is anything peculiar, which God had approved in the fathers but wished not to be drawn, as they commonly say, into a precedent, the superstitious think that they have the best reason in their favor, when they can set up such a shield against God. As, then, the Israelites had at that time the name of their father Isaac in their mouths while they were foolishly worshipping God in Bethel and in other places, contrary to what the law prescribed, the Prophet Amos designedly repeats here again the name of Isaac, expressing it probably in imitation of what had been said by Amaziah.