A tireless defender of the truth, Bishop Osie fearlessly debates false teachings from diverse religious groups. Armed with deep apostolic knowledge from Apostle Arsenio Ferriol, he has engaged in impactful debates throughout his ministry.
Upon the Apostle's commission, Bishop Osie assumed the role of advancing evangelism in Luneta Park. As a true pioneer, he led public preaching in 1986 at Carriedo, Isetann, and market evangelisms in Dapitan, Trabajo, Blumentritt, Divisoria, Pritil, and Aranque in Manila, including Cloverleaf Market and Oriental Plaza in Balintawak, and Galas, Quezon City. He also pioneered preaching inside the market of Parang and Marikina City. His guidance also fostered spirited crusades and house-to-house evangelisms throughout the city.
Bound by love and a shared mission, he joined hands with Presbyter Mona in matrimony. Together, they nurtured a family of four children, each fervently dedicated their lives to the ministry and followed the path to becoming a pastor.
In 2006, he was ordained as a bishop. Now, as the Secretary of the PMCC (4th Watch) Council, Bishop Osie holds the role of Regional Overseer for Greater Manila, Northern, and Central Luzon. His influence spans wide, from hosting Oras ng Katotohanan Radio, writing columns for The Word Magazine, and serving as the vanguard of the church apostolic doctrine against assailants of the truth on television, to international speaking, church debating, advising Goodman Music, leading PMCC (4th Watch) Manila, and guiding Maranatha Christian Academy of Manila.
Under Bishop Osie's guidance, Manila Locale's music ministry flourished, culminating in the 'Fireproof' album by Dokimos Christian Band, led by his first-born son, Brother JR Quillao. In 2012, he orchestrated Manila Locale's grand 25th Church Anniversary celebration at Sofitel Hotel, featuring a full orchestra alongside Dokimos Christian Band, Sphragis Strings Ensemble, and New Creation Chorale. He also initiated expansion, inaugurating worship in Marilao, Bulacan, and establishing the churches in North Bay, Paco, Pandacan, Sampaloc, and Sta. Ana, Sucat, Tondo, and the recently opened local church in Grace Village.
Bishop Osie's journey epitomizes apostolic obedience, sacrifice, integrity, and leadership. Despite facing numerous challenges, he has established houses of worship across the Philippines, guided by the Apostle's resounding call: "No retreat, no surrender!”