“They devoted themselves to the apostles’ teaching and fellowship, to the breaking of bread and the prayers (Acts 2:42 NRSV).” This article is the fourth article in a series on the early Christian church as depicted in Acts 2:41-47. The first three articles were on the apostles’ teaching, fellowship, and the breaking of bread. Both the Renaissance humanists and the Protestant reformers were guided by a similar ethos–a return to the original sources (ad fontes).