Habib Bacha received his priestly ordination on 29 June 1956 leading church offices.
Previously, he was at the seminary of St. Paul in Jerusalem, where completed his studies in theology and philosophy.
Bacha was appointed in 1975 Melkite Archbishop of Beirut and Byblos and continued his studies in Rome after episcopal ordination.
On August 23, 1975, Habib Bacha was appointed Archbishop of Beirut and Byblos.
During the apostolic visit of Pope John Paul II in 1997, he was Chairman of the Episcopal Commission for the Laity and responsible representative of the youth in Lebanon.