Born in M’lang, Cotabato, on March 1, 1950, Bishop Lampon was ordained a priest for the congregation of the Oblates of Mary Immaculate (OMI) on March 26, 1977.
His assignments were as follows: parish priest in Lebak, Sultan Kudarat and in the Cathedral of Cotabato (1977-1978); staff member of the Notre Dame Archdiocesan Seminary (1979-1981); director of Postulants and Scholastics of the OMI (1988-1992); Provincial Superior, OMI Philippine Province (1988-1992) and General Counsellor of OMI at their general administration in Rome (1992-1997).
On November 21, 1997, he was appointed apostolic vicar of Jolo and became part of the Rome-based Pontifical Council for Interreligious Dialogue in 2012.
In the CBCP, Lampon headed the Commission on Interreligious Dialogue from 2011 to 2017. Currently, he is the chairman of the Commission on Ecumenical Affairs.