The believers with property sold it and gave the money to the Apostles to help support the other believers in the church.

Source:

Acts 4:34-38

I was headstrong, kept saying the wrong things, also I didn’t have the courage I thought I had. Yet God used me in a mighty way. Who am I?

I am Peter the Apostle. After all of my failings I preached the sermon on Pentecost and led by God opened the church to Gentiles.

Source:

Matthew 16:18 Although pretty much the entire New Testament works.