With apologies for only responding to your question at the "11th hour" I submit this account which may be relevant:
Directly after the Holy Spirit came upon the disciples in Jerusalem at Pentecost, there is an account of how Peter, who was filled with the Holy Spirit, was enabled to witness to the High Priest and other ruler and elders. It's in ...
Did any of the early church fathers believe they had to follow dietary laws ?
No. They believed that there is only one God (Mark 12:29-32), and that He wasn't the same as our appetites (Matthew 6:24; Luke 16:13), and that serving the latter would constitute spiritual idolatry (Philippians 3:19); as such, fasting always constituted a spiritual discipline (...
In addition to the discussion of Jesus' nuclear family already mentioned, there are three doctrines that come to mind. Others could be cited; these are the three I've seen most commonly.
1. Numerous denominations--worship on Sunday
From Justin's First Apology, chapter 67:
And on the day called Sunday, all who live in cities or in the country
Having read Ken Graham’s excellent answer in the question asking if any of the early church fathers believed they had to follow dietary laws, one would think that the Adventists defend their dietary regiment by appealing to extra-biblical evidence from the 1st and 2nd centuries of the early church.
Did any of the early church fathers believe they had to follow dietary laws?
The short answer is that some did and others did not!
What was common amongst the Church Fathers is that they all encouraged the faithful to pray and ask God’s blessings over the food that they were about to consume (Grace before Meals).
They generally had specific dietary rules for ...
Some early Christians believed that they should follow the law in its entirety. The Gospel of Matthew comes from a community holding this view:
Think not that I have come to abolish the law and the prophets; I have come not to abolish them but to fulfill them. For truly, I say to you, till heaven and earth pass away, not an iota, not a dod, will pass from ...
There are a couple of doctrines that appeal to early non-scriptural accounts.
Explanation of Brothers
The Infancy Gospel of James refers to an "old Joseph" and "young Mary". In the story, Joseph is portrayed as a widower with children from a previous marriage.
Subsequent to that, Jerome rejected that explanation and basically invented ...
What was the early Church Fathers' understanding of the “baptism with Holy Spirit and fire”?
The terms ”baptism by fire” and ”baptism of fire” are derived from the Bible, from the New Testament book of Matthew 3:11.
Baptism by fire and baptism of fire are two idioms that mean the same thing. Baptism by fire is more often used in the United States and ...
Are there any denominations that back up their doctrines with unambiguous extra-biblical evidence from the 1st/2nd century of the early Church?
No. Of course not.
The painfully obvious reason for this being that the writings of second century Christians are no more immune to said ambiguity than those of the ones from the preceding century. Unless you know ...