The power of God in the Gospel Does indeed accomplished its task, as that is the agent that God ordain was the method to have His elected ones to get saved, by hearing the good news, and by the Spriit Himself quickening them to respond and receive jesus to get saved!
its not lacking anything, but not intended by God to save all who hear it!
The part of Yeshua1's answer I have bolded is error. A person is not quickened to have the ability to respond and receive Jesus and be saved.
That is saying you have to be saved to be able to be saved!
To be quickened IS to be saved, quickening is when all of one's sins and transgressions are forgiven.
Col 2:13 And you, being dead in your sins and the uncircumcision of your flesh,
hath he quickened together with him,
having forgiven you all trespasses;
Colossians 2:13 defines exactly what "quickened" means, it means to be forgiven all your trespasses. However, no man is forgiven all his trespasses until he first believes on Jesus.
So, this verse proves men have the ability to believe the gospel, and when they do, they will be quickened, having all their sins and trespasses forgiven.
Charles Spurgeon said:
In our own day certain preachers assure us that a man must he regenerated before we may bid him believe in Jesus Christ; some degree of a work of grace in the heart being, in their judgment, the only warrant to believe. This also is false. It takes away a gospel for sinners and offers us a gospel for saints. It is anything but a ministry of free grace.
If I am to preach faith in Christ to a man who is regenerated, then the man, being regenerated, is saved already, and it is an unnecessary and ridiculous thing for me to preach Christ to him, and bid him to believe in order to be saved when he is saved already, being regenerate.
http://www.spurgeon.org/sermons/0531.htm
Spurgeon recognized that it is ridiculous to bid a man who is already quickened and regenerated to believe on Jesus to be saved, when he is already saved.
What Spurgeon just called ridiculous is exactly what Yeshua1 and most other Calvinists believe. They believe you have to be saved to have the ability to believe and be saved! Absurd.