This page is a compilation of observations drawn from various comments across multiple locations, including BSA and Scholars’ posts.
Andrew M Koke – I think Luke had a copy of 1 Corinthians. We know that 1Co has lasted to the present day, so it’s reasonable to think that copies of it could have been distributed over the ~50 years between 1Co and Luke/Acts. Further, Luke’s telling of the Lord’s Supper in chapter 22 resembles Paul’s version of the Lord’s Supper in 1Co 11. Luke is the only gospel, for example, to say “Do this in remembrance of me,” which Paul states in 1Co 11. Perhaps Luke moved away from the Mark text of the Lord’s Supper towards a more Pauline text, which he had in front of him. From BSA here.
Jesus’ appearance to Peter is not in any of the gospels.