Isaiah, as any man would be, is humbled at this experience. This verse should make one think about anyone claiming that God talks to them personally. Note the word ‘King’ in this verse; this is a comparison between the True King, and those of earthly realms.

Isa 6:6   Then flew one of the seraphims unto me, having a live coal in his hand, which he had taken with the tongs from off the altar:

7:   And he laid it upon my mouth, and said, "Lo, this hath touched thy lips: and thine iniquity is taken away, and thy sin purged."

     This hot ‘coal’ came right off of God’s Altar. The fact that this ‘coal’ touched Isaiah’s mouth, symbolizes the Holy Spirit. This is all meant in the spiritual. God’s Holy Spirit ‘purged’, or made atonement for Isaiah’s impurities, for he was to speak God’s Word to the people. God is a ‘consuming fire’ in the sense of the spiritual. When His Spirit touches His people, it doesn’t burn them; it warms them with His Presence. Note that Isaiah was also a 'sinner' as we all are in the flesh.

Isa 6:8   Also I heard the voice of the Lord, saying, "Whom shall I send, and who will go for Us?" Then said I, "Here am I; send me."

      Since this hot ‘coal’ off of God’s altar had purged Isaiah, he was ready for whatever task God wanted. God’s people likewise have this attitude when gifted with the Holy Spirit.

Isa 6:9   And He said, "Go, and tell this People,’ Hear ye indeed, but understand not; and see ye indeed, but perceive not.’

      This is about those who have ears to hear physically, and eyes to see physically, but not spiritually. ‘Go, and tell this People’ is a message from God; if you do have eyes to see, and ears to hear, go tell them anyway, in other words, warn them. Why? In my opinion, even though God has put a ‘slumber’ upon many, His Word must be taught in order to bring back into the fold those who can ‘see’ and ‘hear’ spiritually, that may be drifting into darkness. Remember Paul? What was Paul doing before Jesus converted him on the road to Damascus? He was persecuting God’s people, and Paul didn’t come to The Lord, The Lord came to him, showing that he was ‘chosen’ and elect. There are many that may still be waiting for the message of God’s Word that are supposed to ‘hear’ and ‘see’ in this earth age. Therefore, the Word must be taught.

Isa 6:10   Make the heart of this People fat, and make their ears heavy, and shut their eyes; lest they see with their eyes, and hear with their ears, and understand with their heart, and convert, and be healed."

      Jesus quoted this in The Gospel in ...

Mark 4:  11: And He said unto them, “Unto you it is given to know the mystery of the kingdom of God:  but unto them that are without, all these things are done in parables.”   

Matt13:  For whosoever hath, to him shall be given, and he shall have more abundance: but whosoever hath not , from him shall be taken away even that he hath.

Paul also quoted this in

 Acts 28:  26: Saying, “Go unto this people, and say, Hearing ye shall hear, and shall not understand; and seeing ye shall see, and not perceive.

27: For the heart of this people is waxed gross, and their ears are full of hearing, and their eyes have they closed; lest they should see with their eyes, and hear with their ears, and understand with their heart, and should be converted, and I should heal them.

28: Be it known therefore unto you, that the salvation of God is sent unto the Gentiles, and that they will hear it.”

 

There are several other references to this verse in the New and Old Testaments. The whole idea to this verse is the written Plan of God contained within His Word, covering the beginning of His creation, the ‘mystery of iniquity’, i.e., the evil bloodline offspring, the knowledge of that first earth age, why we were born into the flesh, the mystery of Salvation through Jesus Christ, and knowledge of the events leading up to the second coming of Christ, and the start of the third