What if men like Papias and Polycarp weren't eyewitnesses of the apostles?

I've argued, in other posts here and elsewhere, that they were. But if they weren't, what would follow?

There still would have been other individuals in early church history who had been an eyewitness of one or more of the apostles. There would have been many eyewitnesses, and some of them would have lived well into the second century. That's the nature of life. Skeptical challenges to the eyewitness status of individuals like Papias and Polycarp don't change that. It's not as though the presence of eyewitnesses depends on the status of particular individuals who have traditionally been thought to have been eyewitnesses of the apostles. The fact that eyewitnesses would have existed and have lived until well into the second century can't reasonably be denied. Keep that in mind when you see people questioning the eyewitness status of certain people.

And even those who weren't eyewitnesses could have been in a good position to have had significant information. They were contemporaries of the apostles, lived in an area where one or more apostles had been, etc. Think of the evidence for the apostle John's long lifespan and his interactions with Christians and churches in Asia Minor, for example. On his long lifespan, see here. For a discussion of the evidence for his influence on the Asia Minor region, go here. That post is focused on Ephesus, but much of what's said there is also applicable to Smyrna and other locations in the area. It's not as though Polycarp had to be a disciple of John in order to have had significant information about John and other eyewitnesses of Jesus. Polycarp was in the right place, at the right time, in the right sort of leadership position to have had a lot of reliable information about Jesus and the apostles, even if he wasn't a disciple of John (though the evidence suggests he was).

Anytime skeptics raise doubts about an issue like whether a certain person was an eyewitness of the apostles or whether a New Testament author was an eyewitness of whatever type, it's helpful to begin by asking what's at stake. Even if the skeptic's position were granted for the sake of argument, what would follow from it? Often, even if we granted the skeptic's position, the source in question still offers a large amount of evidence against the skeptic's view of Christianity.

Why was there so much diversity in ancient baptismal beliefs and practices?

Gavin Ortlund just posted a video about how the historical evidence favors credobaptism over paedobaptism. I agree with him, and I've written about the subject in other posts, like here.

What I want to focus on in this post is why we see so many differences, and often contradictions, among the ancient sources on baptismal issues if what critics of Protestantism tell us about the nature of the church and other relevant issues is true. If there was one church that all or a large percentage of these sources belonged to, with the sort of unity people like Romans Catholics and Eastern Orthodox often claim they had in the past, with their infallible church maintaining all apostolic teaching in every generation, providing guidance, scripture interpretation, the settling of controversies, and such in the way modern Catholics and modern Orthodox often claim their church provides, why do we see such diversity in the historical record on baptismal issues? Some of the differences went on for centuries, sometimes a millennium or more.

Hermas (who lived in Rome, a significant context in relation to Roman Catholicism) advocated postmortem baptism (The Shepherd Of Hermas, Book 3, Similitudes, 9:16; see, for further discussion, Anthony Lusvardi, Baptism Of Desire And Christian Salvation [Washington, D.C.: The Catholic University Of America Press, 2024], 15-18). As I discussed in a recent post, people like Cyprian thought John 3:5 refers to two sacraments, not just baptism. Cyprian, along with others, also disagreed with Roman Catholicism about the validity of heretical baptism. As I discussed in another recent post, the concept of baptism of desire was widely absent or contradicted early on and didn't become a majority view until well into church history. And there are many other baptismal views the early sources held that are wrong by the standards of modern Roman Catholicism and modern Eastern Orthodoxy. For a discussion of a lot of other examples, see here. The views we find in the early sources include credobaptism and justification apart from baptism.

Doing Something Imperfectly

"[My book] has weaknesses, but there are times when it is better to do something imperfectly than to do nothing perfectly. Mistakes can be corrected, but it is hard to overcome trivialization." (Craig Atwood, The Theology Of The Czech Brethren From Hus To Comenius [University Park, Pennsylvania: The Pennsylvania State University Press, 2009], xix)