John Gills Exposition of the Bible Commentary - Isaiah 28:9
Whom shall he teach knowledge ?.... Not the drunken priest or prophet, who were both unfit for teaching men knowledge; but either the true and godly priest or prophet of the Lord, or the Lord himself, before spoken of as a spirit of judgment, Isaiah 28:6 namely, by his prophets and ministers, the latter seem rather intended; whom may or can such an one teach the knowledge of God, and of themselves; the knowledge of the law, and of the Gospel; the knowledge of divine truths, of things... read more
Matthew Henry's Complete Commentary - Isaiah 28:9-13
The prophet here complains of the wretched stupidity of this people, that they were unteachable and made no improvement of the means of grace which they possessed; they still continued as they were, their mistakes not rectified, their hearts not renewed, nor their lives reformed. Observe, I. What it was that their prophets and ministers designed and aimed at. It was to teach them knowledge, the knowledge of God and his will, and to make them understand doctrine, Isa. 28:9. This is God's way of... read more