Pope Francis sent a message to President Reuven Rivlin as he crossed over Israel en route to Baghdad from Rome on his four-day historic visit to the country - the first visit by a pontiff to Iraq.The Pope's flight was permitted to pass through Israeli airspace to reach its destination in Iraq.Air traffic control stations in northern Israel relayed the message recorded by Francis intended for Rivlin. “To His Excellency Reuven Rivlin, President of the State of Israel. Entering Israeli airspace on my Apostolic journey to Iraq, I send warm greetings to you and the people of the nation," said the Pope. "Praying that almighty God will bless you all with His gift of harmony and peace. Franciscus Papa.”The air traffic controllers thanked the Alitalia pilot for relaying the dispatch, and promised to convey the message to the president.Rivlin's office notes that the president was "deeply moved by the kind words from the Pope, with whom he is in close and warm contact."Francis visited Ur on Saturday, the birthplace of the prophet Abraham, who is revered by Christians, Muslims and Jews, and meet Iraq's top Shi'ite Muslim cleric, 90-year-old Grand Ayatollah Ali al-Sistani.The trip is the pope's 33rd outside Italy. He is due to return to Rome on Monday morning. Reuters contributed to this report.