John Gills Exposition of the Bible Commentary - Isaiah 8:20
To the law, and to the testimony ,.... Kimchi takes this to be an oath, "by the law, and by the testimony", it is so and so; but Aben Ezra observes there is no instance of this kind in Scripture; it is a direction of Christ's to his disciples, to attend to the writings of Moses and the prophets, to search the Scriptures, as in John 5:39 and particularly what is before said in this prophecy concerning himself, the same is meant as on Isaiah 8:16 . if they speak not according to this... read more
Matthew Henry's Complete Commentary - Isaiah 8:16-22
In these verses we have, I. The unspeakable privilege which the people of God enjoy in having the oracles of God consigned over to them, and being entrusted with the sacred writings. That they may sanctify the Lord of hosts, may make him their fear and find him their sanctuary, bind up the testimony, Isa. 8:16. Note, It is a great instance of God's care of his church and love to it that he has lodged in it the invaluable treasure of divine revelation. 1. It is a testimony and a law; not only... read more