Perez’s ministry leaders are unable to take an offering, as members of the FARC would confiscate the funds. The financial assistance received from Christian Aid has therefore been an invaluable resource to the ministry. A Christian Aid field scout discovered the ministry in 1987.

Because Christians are under the constant scrutiny of the FARC, Perez sees this as an opportunity for evangelism. "It's the everyday living—being a good neighbor, inviting them in for dinner, a kind word—that will plant seeds in their hearts and eventually win them to Christ," Perez said.

Perez’s ministry workers have started reaching members of the FARC with the gospel. Raul, a commander of a guerrilla group, murdered a Christian man in one of Perez’s churches.

After learning about the tragedy, the pastor of this church visited Raul, telling him about God’s love and forgiveness. The visits continued for several more months. Raul and his family eventually accepted Christ as Savior.

Raul’s testimony has been repeated in the lives of countless others who have learned about Christ through Perez’s missionaries.

Perez is now heading toward the finish line of his faithful race; however, he is not doing so timidly. On the contrary, even after receiving surgery for six hernias, Perez continues his brave journeys through jungles and rivers via motorcycle and canoe to remote regions in Colombia.