I. How the sword is here described. 1. It is sharpened, that it may cut and wound, and make a sore slaughter. The wrath of God will put an edge upon it; and, whatever instruments God shall please to make use of in executing his judgments, he will fill them with strength, courage, and fury, according to the service they are employed in. Out of the mouth of Christ goes a sharp sword, Rev. xix. 15. 2. It is furbished, that it may glitter, to the terror of those against whom it is drawn. It shall be a kind of flaming sword. If it have rusted in the scabbard for want of use, it shall be rubbed and brightened; for though the glory of God's justice may seem to have been eclipsed for a while, during the day of his patience and the delay of his judgments, yet it will shine out again and be made to glitter. 3. It is a victorious sword, nothing shall stand before it (v. 10): It contemneth the rod of my son as every tree. Israel, said God once, is my son, my first-born. The government of that people was called a rod, a strong rod; we read (ch. xix. 11) of the strong rods they had for sceptres. But when the sword of God's justice is drawn it contemns this rod, makes nothing of it; though it be a strong rod, and the rod of his son, it is no more than any other tree. When God's professing people have revolted from him, and are in rebellion against him, his sword despises them. What are they to him more than another people? The marginal reading gives another notion of this sword: It is the rod of my son; and we know of whom God has said (Ps. ii. 7), Thou art my Son, this day have I begotten thee, and (v. 9) Thou shalt break them with a rod of iron. This sword is that rod of iron which contemns every tree and will bear it down. Or, This sword is the rod of my son, a correcting rod, for the chastening of the transgression of God's people (2 Sam. vii. 14), not to cut them off from being a people. It is a sword to others, a rod to my son.