A Testimony: Your Most Powerful Weapon Against Evil | Elder Ronald M Barcellos | Feb 24, 2026

Elder Ronald M. Barcellos 
General Authority Seventy 
Brigham Young University–Hawaii Devotional
 
Elder Ronald M. Barcellos teaches that a testimony of Jesus Christ is the most powerful weapon against evil. Referring to the war in heaven, he explains that we overcame Satan through the Savior’s Atonement and “the word of [our] testimony,” and that we must gain and strengthen that testimony again in this life. He invites listeners to ask, seek, and knock through prayer, scripture study, and faithful obedience, promising that a growing testimony will protect them from doubt, deception, and the adversary’s attacks. 
 
“Brothers and Sisters, you were chosen by God to come to earth in these latter days because you were valiant in your testimony in the pre-mortal life.” — Elder Ronald M. Barcellos 
 
Elder Ronald M. Barcellos was sustained as a General Authority Seventy of The Church of Jesus Christ of Latter-day Saints in April 2025. He has served in numerous Church callings, including full-time missionary in Brazil, bishop, stake presidency counselor, and mission president in Portugal. He studied business administration at São Marcos University in São Paulo, Brazil, and previously co-founded and led GreenMile, LLC. Elder Barcellos was born in São Paulo, Brazil, in 1975, is married to Karin Spat Albino Barcellos, and is the father of three children. 
 

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