I. He must by his gestures in preaching express the deep sense he had both of the iniquities and of the calamities of the house of Israel (v. 11): Smite with thy hand and stamp with thy foot. Thus he must make it to appear that he was in earnest in what he said to them, that he firmly believed it and laid it to heart. Thus he must signify the just displeasure he had conceived at their sins, and the just dread he was under of the judgments coming upon them. Some would reject this use of these gestures, and call them antic and ridiculous; but God bids him use them because they might help to enforce the word upon some and give it the setting on; and those that know the worth of souls will be content to be laughed at by the wits, so they may but edify the weak. Two things the prophet must thus lament:—1. National sins. Alas! for all the evil abominations of the house of Israel. Note, The sins of sinners are the sorrows of God's faithful servants, especially the evil abominations of the house of Israel, whose sins are more abominable and have more evil in them than the sins of others. Alas! What will be in the end hereof? 2. National judgments. To punish them for these abominations they shall fall by the sword, by the famine, and by the pestilence. Note, It is our duty to be affected not only with our own sins and sufferings, but with the sins and sufferings of others; and to look with compassion upon the miseries that wicked people bring upon themselves; as Christ beheld Jerusalem and wept over it.