What topics discussed in the letters reflect a time later than Paul?

In the letters attributed to Paul, particularly those in the New Testament, topics such as the development of church hierarchy, the emergence of Gnostic thought, and the role of women in the church reflect a time later than Paul's ministry. Additionally, discussions about the integration of Gentiles into the Christian community and the establishment of more formalized doctrines indicate a context that evolved after Paul's lifetime. These themes suggest a response to the challenges faced by early Christians as they sought to define their beliefs and practices in a rapidly changing religious landscape.