Summary: God’s call to service may not bring what the world calls success. Remaining faithful to God’s call and to His Word is true success.

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ISAIAH 6:8-13


[John 12:37-43]

The prophet knew that the entire nation needed the same kind of awareness of God and cleansing of sin he had just received. So he responded that he would willingly serve the Lord. Isaiah the prophet volunteered himself to be God’s messenger. However, the message he hears is harsh. Moreover, it is coupled with a command to dull the people’s senses so that they are not able to change their actions and be healed or redeemed.

The effect of unheeded preaching is hardening that leads to destruction. [The implication is that its effect is extended to all the nation that would not heed, even though all did not come and hear.] The proclamation of the Word of God brings either obedience or hardening. There is a point of no return in refusing to obey God’s Word. Israel had reached that point. It had determined to go its own way and it did not matter what God said. They might give lip service to God but obedience from the heart had been lacking for some time.


Let’s briefly review verse 8 again. Then I heard the voice of the Lord, saying, Whom shall I send, and who will go for Us? Then I said, Here am I. Send me!

Isaiah heard the need and volunteers to fulfill the call. His response is Send me, that is, Lord, give me commission and full instruction. Send me, and then, no doubt, You will stand by me. It is a great comfort to those whom God sends to know that they go for God, and may therefore speak in His name, as having authority, and be assured that He will uphold and strengthen them.

Upon acceptance of the call the mission command follows beginning in verse 9. And He said, Go, and tell this people: Keep on listening, but do not perceive; Keep on looking, but do not understand.

God takes Isaiah at his word, and here sends him on a strange errand—to foretell the demise of His people and even to ripen them for that ruin—to preach a message from God that if not heeded would bring a hardening of hearts. Yes, they will hear him, but that is all. They will not learn from or heed his message because their hearts had become calloused (hardened) beyond repentance. They will not understand him, meaning, they will not receive any painful conviction, nor apply their mind that they might understand him. They were prejudiced against the true intent and meaning of what he says, and therefore they will not understand him, or pretend they do not.

This hardening of hearts is a type or a foreshadowing of the Jews in the days of the Messiah. They then would obstinately reject the gospel, and therefore be rejected of God. These verses are quoted in part or referred to six times in the New Testament. Jesus quoted part of this verse to explain that Israel in His day could not believe because they would not believe (Matt. 13:10-15; Luke 8:10; John 12:37-43). In spite of the warning of spiritual judgment they hardened their heart against the Christ. Though spiritual judgment makes the least noise, and is usually unobserved, yet of all judgments it is the most dreadful.

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