The Replacement Theory
What a strange mission God sends Isaiah on. Isaiah 6:9–10 (ESV) And he said, “Go, and say to this people: “ ‘Keep on hearing, but do not understand; keep on seeing, but do not perceive.’ 10 Make the heart of this people dull, and their ears heavy, and blind their eyes; lest they see with their eyes, and hear with their ears, and understand with their hearts, and turn and be healed.” Texts like this are not our go-to portions of scripture when we need help from God's Word. We don't like to face up to the fact that sometimes people are hardened beyond repair. That was Isaiah's calling. To confirm their hardness. They already stopped their ears to God's voice. They already saw what God had done to discipline and punish and warn but they got to a point where they no longer cared. What a sad state of affairs. What a strange mission. Amazingly, these words are quoted in the New Testament 6 times! That means the most frequent application of this text is in the time of Jesus ...