Leonardo De Chirico, a theologian and educator, along with Rachel Ciano, discuss the mistakes evangelicals make in engaging with Roman Catholicism. They explore the contrasting perspectives on Catholicism, the differences between Jesus and Mary within the Catholic system, and the importance of intentional engagement with Roman Catholics. They also delve into the diminishing role of the Holy Spirit and the promotion of Mary in Roman Catholicism, and its implications on the understanding of the Trinity and Jesus' humanity.