Mark 6:13 describes the twelve disciples doing what Jesus had sent them out to do: driving out demons, anointing sick people with oil, and healing them. The verse shows that Jesus shared his authority over evil and sickness with ordinary followers, and that this ministry was carried out in obedience to his instructions. Mark, the Gospel writer, reports this as a short summary of the disciples’ first mission trip, given to readers who were learning what it meant to follow Jesus.
They cast out many demons, and anointed many with oil who were sick, and healed them.
Mark 6:13 (WEB)
What Mark 6:13 Means
The verse has three parts, and each one describes a different kind of ministry. “They cast out many demons” refers to spiritual oppression, the presence of unclean spirits that Mark repeatedly shows Jesus confronting. “Anointed many with oil who were sick” points to a practical act of care, in which oil was applied to the body as a sign of prayer and blessing. “And healed them” names the result the disciples saw, a real restoration of health in people who had been suffering.
The verse does not promise that every sick person will be healed or that every demon will be cast out whenever a believer asks. It records what happened on this specific mission, under Jesus’ direct commission, and it presents that success as grounded in his authority rather than in the disciples’ own strength. Read carefully, it teaches that God’s power can work through people who are weak and unremarkable, but it does not turn that power into a formula.
The Context of Mark 6:13
Mark’s Gospel is brief, fast-moving, and focused on what Jesus does more than on long speeches. Traditionally the author is identified as John Mark, a companion of Peter and later of Paul, and the book was likely written for a Christian audience, possibly in or near Rome. The sending of the twelve in chapter 6 comes right after Jesus’ rejection in his hometown, and it is the first time Mark shows the disciples acting on Jesus’ behalf with his full authority.
The verses just before this one give the instructions for the trip: travel light, accept hospitality, and move on when a town refuses to listen. The verses that follow switch abruptly to King Herod’s reaction and the story of John the Baptist’s death. That contrast matters. The disciples’ healing work goes forward in obscurity and simple obedience, while the powerful respond with fear and violence, so the verse reads as a picture of faithful service set against the opposition it will face.
Key Phrases in Mark 6:13
Matthew 10:1
He called to himself his twelve disciples, and gave them authority over unclean spirits, to cast them out, and to heal every disease and every sickness.
(WEB)
Matthew records the same commissioning of the twelve and gives the authority to cast out unclean spirits and heal every disease. Reading it alongside Mark 6:13 shows how both Gospels present this mission as a direct sharing of Jesus’ own power with his followers.
Luke 10:17
The seventy returned with joy, saying, “Lord, even the demons are subject to us in your name!”
(WEB)
When the seventy-two return, they report with joy that even the demons submit to them in Jesus’ name. Luke’s account shows the same pattern of authority given in mission, and Jesus redirects their joy toward the greater reality that their names are written in heaven.
A Short Prayer From Mark 6:13
Lord Jesus, you gave your first followers a share in your authority and sent them out to serve people in need. Help me to trust that you can work through my simple obedience, even when I feel unprepared. Where I see sickness, fear, or spiritual darkness, give me compassion and wisdom to act with prayer and care. Let my confidence rest in you rather than in myself, and let your healing reach the people I bring before you. Amen.
