Irresistible grace, or efficacious grace, is a third of the five points of Calvinism. This doctrine refers to the actual saving of fallen men by the Holy Spirit, in applying to them the redemption accomplished on the cross. This work of salvation is wholly the work of God; it takes place by grace alone. Negatively, this means two things. First, the salvation of a man is not something that any man deserves, or makes himself worthy of, in any way. Second, salvation is not a work that man accomplishes, in whole or in part. Man does not co-operate with God in bringing about his salvation. Positively, that salvation takes place by grace alone means that salvation is freely given to men by God, merely out of His love and goodness. Also, it means that this salvation is accomplished by God's power, the Holy Spirit. He regenerates; He calls; He gives faith; He sanctifies; He glorifies. This work of saving and the power of grace by which the Holy Spirit performs this work are efficacious. In carrying out this work, the Spirit and His grace do not make a man's salvation possible, but effectually save him. It is not on the order of a mere attempt by God that depends, ultimately, on the man whom God tries to save and that may, therefore, be frustrated and come to naught; but it is on the order of a work of creation that sovereignly and unfailingly makes the man whom God is pleased to save a new creature in Jesus Christ.
It is not Calvinism, that God forces men, kicking and screaming, into heaven, but that God makes a man willing, who before was unwilling. In the Canons of Dordt, the Reformed believer describes the saving work of irresistible grace this way:
Calvinism is not the gospel that Jesus preached.
Jesus never taught that only a preselected group could come to Him while the rest were created with no opportunity to be saved. He preached a message that calls all people to repentance, faith, obedience, and perseverance.
Jesus said:
"For God so loved the world, that he gave his only begotten Son, that whosoever believeth on him should not perish, but have eternal life." (John 3:16, ASV)
He did not say that God loved only a limited number. He said God loved the world, and "whosoever" believes may have life. Jesus invited everyone:
"Come unto me, all ye that labor and are heavy laden, and I will give you rest. "(Matthew 11:28, ASV)
"All" means all. An invitation that is given only to a secret group is not really an invitation.
Jesus also mourned over those who refused Him:
"O Jerusalem, Jerusalem, that killeth the prophets, and stoneth them that are sent unto her! how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not! "(Matthew 23:37, ASV) Jesus desired to gather them, but they were unwilling. Their refusal was real. This does not fit the idea that God had already determined that they could not come.
Jesus repeatedly placed responsibility upon people:
If ye love me, ye will keep my commandments. (John 14:15, ASV)
If a man keep my word, he shall never see death. (John 8:51, ASV)
He that endureth to the end, the same shall be saved. (Matthew 24:13, ASV)
These words make little sense if salvation cannot be rejected and if perseverance is guaranteed regardless of a person's response.
Jesus even warned His own disciples:
"Abide in me, and I in you.... If a man abide not in me, he is cast forth as a branch, and is withered." (John 15:4, 6, ASV)
Branches that were in Him could fail to remain. Therefore, abiding is something believers are commanded to do, not something that happens automatically.
Jesus also taught that men will be judged according to whether they obeyed His words:
"He that rejecteth me, and receiveth not my sayings, hath one that judgeth him: the word that I spake, the same shall judge him in the last day." (John 12:48, ASV)
The gospel of Jesus is simple. God loves the world. Christ died for the world. Everyone is called to repent and believe. Those who believe must remain faithful, keep His words, and endure to the end.
The message of Jesus is not, "You are saved because you were chosen and cannot fall away."
His message is:
Repent ye, and believe in the gospel. (Mark 1:15, ASV)
If ye keep my commandments, ye shall abide in my love. (John 15:10, ASV)
Be thou faithful unto death, and I will give thee the crown of life. (Revelation 2:10, ASV)
That is the gospel preached by Jesus. It is a call to all people, and it requires a response of faithfulness and perseverance. Calvinism, with its doctrines of unconditional election, limited atonement, and irresistible grace, is a theological system developed centuries later. The gospel itself is found in the words of Christ.