John Gills Exposition of the Bible Commentary - Isaiah 44:18
They have not known nor understood ,.... Who the true God is, nor the worship that is due to him alone; they do not know nor understand divine and spiritual things; nay, they have not the knowledge and understanding of men; they want common sense that can do and say such things as before mentioned, both idol makers and idol worshippers: for he hath shut their eyes that they cannot see, and their heart that they cannot understand ; either the devil, as some think, the god of this world,... read more
Matthew Henry's Complete Commentary - Isaiah 44:9-20
Often before, God, by the prophet, had mentioned the folly and strange sottishness of idolaters; but here he enlarges upon that head, and very fully and particularly exposes them to contempt and ridicule. This discourse is intended, 1. To arm the people of Israel against the strong temptation they would be in to worship idols when they were captives in Babylon, in compliance with the custom of the country (they being far from the city of their own solemnities) and to humour those who were now... read more