Lexicon :: Strong's G3138 - markos

Μᾶρκος, Μάρκου, ὁ, Mark; according to the tradition of the church the author of the second canonical Gospel and identical with the John Mark mentioned in the Acts (see Ἰωάννης, 5). He was the son of a certain Mary who dwelt at Jerusalem, was perhaps converted to Christianity by Peter (Acts 12:11f), and for this reason called (1 Peter 5:13) Peter's son. He was the cousin of Barnabas and the companion of Paul in some of his apostolic travels; and lastly was the associate of Peter also: Acts 12:12, 25; Acts 15:37, 39; Colossians 4:10; 2 Timothy 4:11; Philemon 1:24 (23); 1 Peter 5:13, cf. Eusebius, h. e. 2, 15f; 3, 39. Some, as Grotius, (Tillemont, Hist. Eccl. 2:89f, 503f; Patritius, De Evangeliis 50:1, c. 2, quaest. 1 (cf. Cotelerius, Patr. Apost. i., 262f)), Kienlen (in the Studien und Kritiken for 1843, p. 423), contend that there were two Marks, one the disciple and companion of Paul mentioned in the Acts and Pauline Epistles, the other the associate of Peter and mentioned in 1 Peter 5:13; (cf. James Morison, Commentary on Mark, Introduction, § 4; Lightfoot on Colossians 4:10).

BLB Scripture Index of Thayer's