Of course, we know that people did not suddenly come to faith without hearing the good news. The followers of Jesus were sent to make followers and teach them to obey all He had commanded. Peter just preached calling for repentance and baptism. The DNA of the early church was one of bold witness and deep dependance! This dependance is there at the end of the passage. It does not end highlighting the apostle’s work, but rather the Father’s.
Often we work as if this verse should say, “And by their hard work, missed Sabbaths, and tireless labors their number grew day by day.” Or even worse, “By her labor alone, without breaks, without proper sleep, skipped meals, the kingdom of God came.” Oh how foolish this is, and yet, how often we fall into believing that it’s up to us to grow the kingdom.
This principle of kingdom growth, that it is the Lord who brings growth, is found all throughout the Scriptures. Mark 4 is a popular parable that Jesus used to teach this same principle. The farmer in the parable does not do a lot of hard work. In fact, the unexpected twist in this story was the lack of toil the farmer performed over the field for the harvest to be ready.
Rather, it says that the farmer “sleeps and rises night and day, and the seed sprouts and grows; he knows not how,” (Mark 4:27). A farmer hearing Jesus teach this parable might be surprised at what he was saying. The hearer might understand that it is hard work to farm. Yet, even though a farmer works hard, there is a moment when he just needs to step back and wait to see what happens. A farmer has no control over the actual growth of the seed. Yet, in this parable about God’s kingdom, there is this unseen force in the story causing growth. It is God who brings kingdom growth.