Pope Francis today made an appeal for world actors to respect of the status quo of Jerusalem, in accordance with the relevant U.N. resolutions, and to let “wisdom and prudence prevail” so as “to avoid adding new elements of tension” in the Middle East and “in a world already shaken and scarred by many cruel conflicts.”

His appeal is clearly addressed to President Donald J. Trump, who will reportedly declare today that the United States recognizes Jerusalem as the capital of Israel and will move its embassy from Tel Aviv to the Holy City in a reversal of almost seven decades of U.S. foreign policy. The pope is effectively telling the president, without naming him, not to proceed down this road, warning that it can lead to even more conflict in the Holy Land and the Middle East. His message appears to be: Stop before it is too late.

The pope’s message appears to be: Stop before it is too late.

Francis issued his appeal at the end of his Wednesday public audience in the Vatican yesterday. He told thousands of pilgrims from all continents of his “deep concern” at the proposed change in the U.S. policy toward Jerusalem which is considered sacred to Jews, Christians and Muslims. While West Jerusalem is the seat of Israel’s government, Palestinians view East Jerusalem as the capital of a future Palestinian state. According to the BBC, the United States would be the first nation to formally recognize Jerusalem as the capital of Israel since the nation was founded in 1948.

The pope said, “I cannot remain silent about my deep concern for the situation that has developed in recent days and, at the same time, I wish to make a heartfelt appeal to ensure that everyone is committed to respecting the status quo of the city, in accordance with the relevant resolutions of the United Nations.”

He added, “Jerusalem is a unique city, sacred to Jews, Christians and Muslims, where the Holy Places for the respective religions are venerated, and it has a special vocation to peace…. I pray to the Lord that such identity be preserved and strengthened for the benefit of the Holy Land, the Middle East and the entire world, and that wisdom and prudence prevail, to avoid adding new elements of tension in a world already shaken and scarred by many cruel conflicts.”

The news that the Mr. Trump intends to move the U.S. embassy, a process that could take several years, has brought strong protests not only from Palestinians but also from the Arab world and the European Union, who warn that the decision is likely to scuttle the peace process in the Middle East. The Holy See has long been against any change in the status of Jerusalem.

Earlier in the morning, in a meeting scheduled before President Trump’s intention was made known, Francis greeted a group of Palestinian religious and intellectual leaders, and renewed his call for a dialogue in the Holy Land that respects the rights of everyone living there. He expressed his hope for “peace and prosperity” for the Palestinian people.

The pope’s full statement on Jerusalem was as follows::

My thoughts now turn to Jerusalem. In this regard, I cannot remain silent about my deep concern for the situation that has developed in recent days and, at the same time, I wish to make heartfelt appeal to ensure that everyone is committed to respecting the status quo of the city, in accordance with the relevant Resolutions of the United Nations. Jerusalem is a unique city, sacred to Jews, Christians and Muslims, where the Holy Places for the respective religions are venerated, and it has a special vocation to peace. I pray to the Lord that such identity be preserved and strengthened for the benefit of the Holy Land, the Middle East and the entire world, and that wisdom and prudence prevail, to avoid adding new elements of tension in a world already shaken and scarred by many cruel conflicts.

Gerard O’Connell is America’s senior Vatican correspondent and author of The Election of Pope Francis: An Inside Story of the Conclave That Changed History. He has been covering the Vatican since 1985.