In this Bible/adult study, Mr. Anthony Ally unpacks the teachings of St. Nicodemus of the Holy Mountain on what it means to evangelize with a pure heart rooted in humility and inner stillness. Far from mere external preaching, true evangelism begins in the transformation of the heart—a heart purified by grace, prayer, and repentance. Drawing from St. Nicodemus’ writings and the Philokalic tradition, we explore how the witness of a holy life, more than words, becomes the light that draws others to Christ.