VATICAN CITY (CNS) — Salvation has nothing to do with the “theology of prosperity” some people claim to see in the Gospel, thinking material well-being comes with faith, Pope Francis said.

In fact, he said, those who proclaim salvation must live simply, in accordance with Jesus’ instruction to his disciples to “take nothing for the journey but a walking stick — no food, no sack, no money in their belts.”

At this morning Mass Feb. 5 in the chapel of the Domus Sanctae Marthae where he lives, Pope Francis focused on the day’s Gospel reading, Mark 6:7-13, and how Jesus’ instructions to his disciples are still valid today.

The Gospel “must be proclaimed in poverty,” the pope said, because “salvation is not a theology of prosperity,” but the “good news” of liberation for all who are oppressed.

“When we forget to live in poverty and forget our apostolic zeal and instead place our trust in our means, the church slowly slips into being a nongovernmental organization.”

“This is the mission of the church, the church that heals and cures,” he said. “Sometimes I have spoken of the church as a field hospital. That’s true. How many of these injured people are there, how many wounds. How many people need their wounds to be healed. This is the mission of the church: to heal wounded hearts, open doors, liberate, tell people that God is good, God forgives all, God is father, God is tender, God always waits for us.”

One who strays from the purity of the Christian message risks presenting the church as a philanthropic organization rather than an evangelizing one, he said, according to Vatican Radio.

Bringing Christ to the poor, the wounded and the prisoners, he said, includes providing material assistance “because the Lord gives us gifts for that reason. But when we forget our mission, when we forget to live in poverty and forget our apostolic zeal and instead place our trust in our means, the church slowly slips into being a nongovernmental organization.”

“It can become a great organization, powerful,” he said, “but it is not evangelical because it is lacking that spirit, that poverty, that power to heal.”

The greatest praise any Christian can receive, the pope said, is being lauded as “a worker for the kingdom,” because that means he or she proclaimed Jesus and helped people draw closer to God and find healing and peace.