6:9-13 God sends Isaiah to foretell the ruin of his people. Many hear the sound of God's word, but do not feel the power of it. God sometimes, in righteous judgment, gives men up to blindness of mind, because they will not receive the truth in the love of it. But no humble inquirer after Christ, need to fear this awful doom, which is a spiritual judgment on those who will still hold fast their sins. Let every one pray for the enlightening of the Holy Spirit, that he may perceive how precious are the Divine mercies, by which alone we are secured against this dreadful danger. Yet the Lord would preserve a remnant, like the tenth, holy to him. And blessed be God, he still preserves his church; however professors or visible churches may be lopped off as unfruitful, the holy seed will shoot forth, from whom all the numerous branches of righteousness shall arise.

9. Hear … indeed—Hebrew, "In hearing hear," that is, Though ye hear the prophet's warnings again and again, ye are doomed, because of your perverse will (Joh 7:17), not to understand. Light enough is given in revelation to guide those sincerely seeking to know, in order that they may do, God's will; darkness enough is left to confound the wilfully blind (Isa 43:8). So in Jesus' use of parables (Mt 13:14).

see … indeed—rather, "though ye see again and again," yet, &c.