The criteria were quite open and very sensible: Writings from the first century C.E. that were regarded as written by apostles or by their fellow workers were regarded as reliable.
Kriterianya cukup jelas dan menurut akal sehat: Tulisan - tulisan dari abad pertama M yang dianggap sebagai tulisan para rasul atau oleh rekan sekerja mereka dianggap bisa dipercaya.