Isaiah faithfully prophesied to Israel that the "ears of them that hear" would one day be opened. But, sadly, his listeners had shut their ears to God's voice. They wanted to hold on to their sins!
"When I called, ye did not answer; when I spake, ye did not hear; but did evil before mine eyes, and did choose that wherein I delighted not. Therefore thus saith the Lord God, Behold, my servants shall eat, but ye shall be hungry: behold, my servants shall drink, but ye shall be thirsty: behold, my servants shall rejoice, but ye shall be ashamed. Behold, my servants shall sing for joy of heart, but ye shall cry for sorrow of heart, and shall howl for vexation of spirit. (Isaiah 65:12-14).
How tragic it is to refuse to hear the loving warnings of the Holy Spirit. Whenever we shut our ears to God's command to mortify the sins of our flesh, we are doomed to experience every kind of sorrow and pain.
Please understand, I'm not talking about a servant of God who is overtaken by a sin he hates. Nor am I referring to the believer who won't allow himself any rest until the Holy Ghost sets him free. Rather, I'm talking about the believer who has learned to love his sin, who has laid his head in the lap of a Delilah. Such a person has a calloused conscience.
The servant who continues his sinful ways will hear voices but none of them will be God's. Instead, that person will be given over to delusion: "I also will choose their delusions, and will bring their fears upon them; because when I called, none did answer; when I spake, they did not hear: but they did evil before mine eyes, and chose that in which I delighted not" (Isaiah 66:4).
What an awful thing it is when God no longer speaks! But how encouraging to know that the Holy Spirit will lovingly caution us and keep us from sin.