Christian nuns wait in the courtyard of the Maronite Church of St. Maroun, in Jerusalem's Old City, as they wait to participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian nuns wait in the courtyard of the Maronite Church of St. Maroun, in Jerusalem's Old City, as they wait to participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90

Christian worshipers participate in the 13th extraordinary Prayer of all Churches for Reconciliation, Unity and Peace, at the Maronite Church of St. Maroun, in Jerusalem's Old City, on June 19, 2016. Photo by Miriam Alster/FLASH90