 Some people have suggested that it was because some of the members of that church, and we can read about this in the beginning of the book of Acts, they sold their property and gave it to the congregation, which the congregation then distributed to the needy. That took place in the mid-30s, shortly after Jesus' death and resurrection, shortly after the founding of the church. So that's about 20 years prior to Paul now collecting this offering for the church in Jerusalem.