James Vernon Bartlet, 1911 Encyclopædia Britannica, Volume 17… (1911)
“ Peter’s words, “Mark, my son,” show how close was the spiritual tie between the older and the younger man (1 Pet. v. 13) ; and as he is writing from Rome (“Babylon,” since Paul’s death and the change of policy it implied) , this forms a link between the New Testament and early tradition, which speaks of Mark as an Evangelist writing his Gospel under the influence of Peter’s preaching (in Rome) . ”
