His father was from Bane, but Murhej was born in Rome around 1625. His Lebanese name "Murhe" was translated into Latin as "Faustus". He entered the Maronite College in Rome in 1636 and completed his studies in 1649 and returned to Lebanon. In 1650, he was ordained priest at Mar Abda Heraraya by Patriarch Yuhanna Safrawy. He was sent in the same year to Rome by the Patriarch to oversee the printing of the Phenqitho, the Maronite "proper of the Saints" in Syriac. In Rome, in order to obtain the permission to print this book Faustus was requested, to translate it into Latin and submit the translation to a Roman committee for examination. Abraham Echellensis, maternal uncle of Faustus (Murhej), was one of the five members of this committee. This book was printed in Rome in 1666 by the congregation of Propaganda Fide.