CARTAGENA — Outside the La Unción Christian Community Church, in this coastal city in Colombia, hundreds of believers gather to tour the city and bring their “message of salvation” to others. On a white crane, there are six speakers, microphones, recording equipment and about ten people identified as "STAFF".

A drone flies over and records the scene. When everything is ready, Pastor Esteban Acosta goes up to the platform and leads the chants.

The followers, of different ages and economic backgrounds, look animated, holding posters and colored balloons. They are spread out between the current location of the church and its new location, being built across the street. In the old structure, the prized Cartagena land, which cost "a million dollars in credit" according to the pastor, there is room for 2,000 people.

In the new temple, with tinted windows and a marble floor, another 2,000 people will fit. Everything is financed by the "generous contributions" of the parishioners.

Esteban Acosta, a self-proclaimed apostle, and his wife, pastor Lisbeth Bello, convince their followers to make donations in exchange for religious favors, while they amass fortunes to afford a life of luxury. They use marketing strategies and a repetitive message with a simple promise: the more money they give to God through them, the more progress they will have on earth as a reward. They call it the "prosperity gospel."