Gospel of Mark and Writing Feats

Peter: Wrote 1st and 2nd Peter
Jude/Judas (Not Iscariot): wrote Epistle of Jude
James: wrote Epistle of James
John: Wrote Gospel of John, 1-3 Epistle of John, and perhaps Revelation

Peter, Andrew, James son of Zebedee, and John were all fishermen
Mark 1:16-20

Gave the Apostles the authority to drive out demons
Mark 3:14-15

Mark 6:12-13
Healed many people with oil and drove out demons

The Lord confirmed his word through the disciples
Mark 16:20