Moran Mor Ignatius Zakka I Iwas, the 122nd successor to St. Peter in the Apostolic See of Antioch, completes 25 years in the Patriarchal See on the day of the Feast of Holy Cross, 2005. The Universal Syrian Church with its flocks spread over many nations, celebrates this unique historic occasion, of His Holiness's Silver Jubilee of the Patriarchal enthronement, with great fervour and enthusiasm. It was on September 14, 1980, the Holy father was enthroned as the Patriarch of Antioch and All the East and the Supreme Pontiff of the Universal Syrian Orthodox Church. He is one of the very few primates of the Syrian Church who have been in the Patriarchal office for an entire quarter of a century.  As a true Shepherd, His Holiness has led the Holy Church to greater glories in these years of his Patriarchal See.

His Holiness was born on April 21, 1933 into the faithful family of 'Iwas' in Mosul, Iraq. He was born as the fourth child and was named 'Seenaherib' (name of the father of St. Behnam). His Holiness had three brothers and three sisters. The forbears of Patriarch Zakka, the Iwas family, originally belonged to Jessera on Tigris; they migrated to Mosul about three hundred years ago. Some of his ancestors adorned very important posts in the Kingdom. His grand father has received an award from King Faisal I of Iraq for his excellence in his job as Chief craftsmen and architect of the State.

The father of His Holiness, Basheer Iwas, who graduated from the University in Istanbul, the then capital of Ottoman Empire, later became a Professor in the Military Engineering College there. A faithful member of Church, he was very enthusiastic in attending the Church Services regularly and also inspired others to follow his path. It was his ardent desire to mould one of his sons as a priest to serve the Holy Church. After a few years of teaching, he left for his home state in Iraq where he started a wood-working factory of his own. But unfortunately, misfortune struck the family a few years later; Basheer Iwas died of a Cardiac arrest. His Holiness was only 10 at that time. Two years later in 1945, his wife, the mother of His Holiness, also passed away. Thus the young Seenaherib, who later came to be known as Zakka, becomes parentless at a tender age of 12.

On November 17, 1963, Rabban Zakka was ordained Metropolitan by the Patriarch Mor Ya`qub III for the Mosul Archbishopric with title 'Severious'. Thus he came to be known as Mor Severios Zakka.

The very next year in 1964 he visited India along with the Patriarch where he participated in the Universal Synod of the Syrian Orthodox Church, held in Kottayam. He later assisted the Patriarch Mor Ya`qub III during the consecration of the first canonical Catholicos of Malankara, Mor Baselios Augen I, on May 21, 1964.   

As Metropolitan of Mosul the Holy Father took special interest in youth activities. Under him, the diocese flourished spiritually and materially. In 1967 he was given additional charge of the European Diocese. In 1969 he was transferred to the Archdiocese of Baghdad and Basra, perhaps the most prestigious archbishopric in the Middle East.  In Baghdad he built churches and opened secondary schools and high schools. As in Mosul, in Baghdad also he took keen interest in the spiritual life of the youth. 

Following the demise of H.E. Thimotheos Yacoub, Metropolitan Mor Severious Zakka was given the additional charge of the ancient monastery of St. Mathew  (Mor Mattai Dayro) in Iraq.  In 1976, he was appointed as the Metropolitan of Middle Europe and Scandinavian countries and in 1978 Mor Severios Zakka was given additional responsibility for the new diocese in Australia. He consecrated several churches and organized congregations in Melbourne, Sydney and a few other places. 

On June 26, 1980, the Patriarch Mor Ya`qub III passed away and was entombed at the St. George Cathedral, Damascus. Consequent to this, the Episcopal Synod was called to choose the new successor to the Apostolic See.  The Holy Synod held on July 11, 1980, with His Beatitude the Catholicos of the East Mor Baselios Paulose II in the chair, unanimously elected Mor Severios Zakka, Archbishop of Baghdad and Basra as the new Patriarch of Antioch and All the East. This marked the beginning of a new era in the history of the Church.