Apostle Mark of the Seventy
The Holy Apostle Mark of the Seventy, also named John, is mentioned by the holy Apostle and Evangelist Luke in the Acts of the Apostles (Acts 12:25, 15:37-39) and also by the holy Apostle Paul in both the Epistle to the Colossians (Col 4:10) and the Epistle to Philemon (Philemon 1:23).
The holy Apostle Mark preached the Word of God together with Paul and Barnabas and was made bishop of the Phoenician city of Biblos. The holy Apostle Mark attained great boldness before God, so that his very shadow healed the sick (also January 4 and April 15).