Isaiah 10:15

This self-exaltation was a foolish sin. "Dare the axe boast itself against him that heweth therewith, or the saw magnify itself against him that useth it? As if a staff were to swing those that lift it up, as if a stick should lift up not-wood!" "Not-wood" is to be taken as one word, as in Isa 31:8. A stick is wood, and nothing more; in itself it is an absolutely motionless thing. A man is "not-wood," an incomparably higher, living being. As there must be "not-wood" to lay hold of wood, so, wherever a man performs extraordinary deeds, there is always a superhuman cause behind, viz., God Himself, who bears the same relation to the man as the man to the wood. The boasting of the Assyrian was like the bragging of an instrument, such as an axe, a saw, or a stick, against the person using it. The verb hēnı̄ph is applied both to saw and stick, indicating the oscillating movements of a measured and more or less obvious character. The plural, "those that lift it up," points to the fact that by Him who lifts up the stock, Jehovah, the cause of all causes, and power of all powers, is intended.

The prophet, in this chapter, is dealing, I. With the proud oppressors of his people at home, that abused their power, to pervert justice, whom he would reckon with for their tyranny (Isa 10:1-4). II. With a threatening invader of his people from abroad, Sennacherib king of Assyria, concerning whom observe, 1. The commission given him to invade Judah (Isa 10:5, Isa 10:6). 2. His pride and insolence in the execution of that commission (Isa 10:7-11, Isa 10:13, Isa 10:14). 3. A rebuke given to his haughtiness, and a threatening of his fall and ruin, when he had served the purposes for which God raised him up (Isa 10:12, Isa 10:15-19). 4. A promise of grace to the people of God, to enable them to bear up under the affliction, and to get good by it (Isa 10:20-23). 5. Great encouragement given to them not to fear this threatening storm, but to hope that, though for the present all the country was put into a great consternation by it, yet it would end well, in the destruction of this formidable enemy (Isa 10:24-34). And this is intended to quiet the minds of good people in reference to all the threatening efforts of the wrath of the church's enemies. If God be for us, who can be against us? None to do us any harm.

10:15 ax . . . saw . . . rod . . . wooden cane: Such instruments are only as good as the person who uses them. Assyria considered itself independent of the hand of God, but their conquests were made possible only by his permission and to serve his purposes (10:5).