Chapters 15 and 16 of Acts are filled with powerful stories, including the beginnings of Paul's second missionary journey, and there's no way I can do them all justice. So, I'm going to focus on the first Jerusalem council, found in Acts 15, because a very important decision was made here by the early church that has huge implications for us today.
This became the crucial distinction for the Christian faith, and yet a battle that continues to be fought today. How often do we find ourselves believing we have to follow certain rules, do certain actions, meet certain standards, in order to measure up and be saved? The Bible often calls these "works." How many people have said, "Let me clean up my act first, and then I'll commit my life to Christ." But what they're saying is actually this, "There are certain things (works) I must do first (such as circumcision in the First Century church), before I will be acceptable to God." But Peter called grace "undeserved." We don't deserve it; we can't earn it; we can't be good enough to gain it. We can only receive it, by faith, with gratitude.
In Acts 10-11, Peter had his first encounter with Gentiles, and discovered that when they placed their faith in Jesus Christ, the Holy Spirit came to live in them, just as He was doing in Jews who were placing their faith in Christ. This event showed that God had much bigger plans than the salvation of a relatively small race - He was setting in motion the salvation of the world!
Now, in Acts 15, we read that some Jewish Christians were trying to force these new Gentile Christians to first become Jews through the rite of circumcision. There was an act they had to do to become a follower of Christ. But Paul and Barnabas strongly disagreed with this teaching. So, the church in Antioch of Syria decided to send Paul and Barnabas to Jerusalem to consult with the apostles and elders of the church, at what has been called the first Jerusalem council.
There's more to this story, but it's interesting to note a pattern that begins here that would carry on for a few centuries in the early church. A controversy arises that threatens to split the church. Because there is no written Scripture, as we have today, or least none that was yet accepted as what we would call New Testament Scripture, how did the early church make decisions? By councils - gatherings of church leaders who prayerfully sought the leading and guidance of the Holy Spirit. And it's also interesting to note that these controversies - some of which would be labeled heresies - caused the church to get clear about what it believed and what it didn't. The doctrines of the church aren't heavy handed rules but are more like foul lines in baseball that help Christ followers know what's in bounds and what's out of bounds. Otherwise, well-meaning Christ followers can drift into all sorts of dangerous beliefs. Doctrines are important, and they were often settled or determined in response to a controversy or heresy, such as the one we see here in Acts 15.
Back to our story, when Paul and Barnabas arrive in Jerusalem, they discover the same controversy has been brewing there as well (15:5). "So the apostles and elders met together to resolve this issue." (15:6, NLT) After lots of discussion, Peter shared the conclusion they had reached:
"God knows people's hearts, and he confirmed that he accepts Gentiles by giving them the Holy Spirit, just as he did to us. He made no distinction between us and them, for he cleansed their hearts through faith. So why are you now challenging God by burdening the Gentile believers with a yoke that neither we nor our ancestors were able to bear? We believe that we are all saved the same way, by the undeserved grace of the Lord Jesus." (15:8-11)
This was a battle Paul would fight over and over again with Jewish Christians in many of his writings. He tried to spell it out very clearly in his letter to the Ephesians: "God saved you by his grace when you believed. And you can't take credit for this; it is a gift from God. Salvation is not a reward for the good things we have done, so none of us can boast about it." (2:8-9) We are not saved by works. We are saved by grace, through faith. This became, in fact, the rallying cry of the Protestant Reformation nearly five hundred years ago.
This decision by the first Jerusalem council would set the foundation for a Christian faith that would never be first and foremost about rules, works and meeting certain criteria, but about a relationship with God through Jesus Christ, because of what Jesus did for us on the cross. We can't earn it, and we certainly don't deserve it. But, we can accept it gratefully, and then seek to serve Christ as an expression of our gratitude, rather than as a condition to earn our salvation.
This misunderstanding is still with us today in many circles, with many folks in our churches closer to the beliefs of the Jewish faith than the Christian faith. Which is why it is such Good News - no one has to measure up to receive this "undeserved" gift of grace - in fact, no one can measure up! We're all in the same boat, so none of us is in a position to brag or boast. We are all saved by grace, through faith!