John Calvin Commentary Isaiah 10:8

"For he saith, Are not my princes all of them kings?" — Isaiah 10:8 (ASV)

For he will say. He explains the reason why the Assyrian will not think that he is the rod of God. It is because, being blinded by pride, he acknowledges no authority superior to his own; for it is impossible for those who rely on their own superiority, and claim ability to do this or that, to submit to the providence of God. The authority which we ought justly to ascribe to God is, to believe that we cannot move even the smallest finger without His permission. On the other hand, whoever imagines that he can do anything, however small, assumes to himself, with blasphemous pride, the power of God.

Are not my princes altogether kings? The Prophet here gives a lively picture of the presumption of a heathen king in boasting that he had everything in his power. This is especially the case with eminent Princes who, abounding in wealth, resources, and power, are so blinded that they hardly know they are men. The opportunities of learning this are too abundant; for what Prince is there at the present day, who knows or remembers that he is a man, and liable to the ordinary calamities of life? Their minds are so entirely intoxicated and deranged, that they believe that whatever they have undertaken they will at once accomplish, and will surmount every obstacle.