Sermon Video: Apollos and the Whole Gospel - Acts 18:18-28

What happens when the Gospel message is missing a key component, or has something added to it?  The danger in such a case is that the Gospel will be devoid of the power that it has to save the Lost.  For example: If someone knew who Jesus was, but not what he had done for us, how could that partial information lead such a person to repentance and faith?  Likewise, if a person knew who Jesus was, and what he had done for us, but was also told that our response is to imitate Jesus and earn our salvation (as opposed to trusting in his work on our behalf), how could such a Gospel with that spurious addition lead such a person to repentance and faith?
In the book of Acts, Luke recounts the return of Paul at the end of his 2nd missionary journey, and his subsequent start to his 3rd missionary journey, but in between those trips he also recounts the arrival of Apollos, an Alexandrian Jew, in Ephesus.  Apollos knew a good deal about Jesus, and his information was accurate, but he didn't know the whole story.  Apollos had believed the message of John the Baptist, the call to repentance and the identification of Jesus as the Messiah, but Apollos didn't know the end of the story, for he had not yet heard of the death and resurrection of Jesus.
Even with the right intentions, and a zeal for the Lord, the truths that Apollos was sharing fell short of what was needed to save, it could point people toward Jesus, but not help them come to him.  Thankfully, the will of God was not idle, and Paul's friends Priscilla and Aquila enlightened Apollos by sharing with him the rest of the Good News about Jesus.
A Gospel missing any of its key elements: who Jesus is (both God and man), what he has done (his vicarious death and resurrection), or what we must do in response (repent in faith), is a defective Gospel, just as a Gospel with additional requirements tacked on (the normal one being human effort instead of faith).  We, as the Church, must always protect the integrity of the Gospel message, insisting upon it in our preaching and teaching, refuting those who preach a different Gospel, and trusting as Scripture tells us that the power to save comes from God, not us.

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