His grandson described him as "feeling great."
A Vatican source said one of the aims of the trip was to comfort Christians who, amid wars and conflicts, have been forced to flee from Iraq and other Middle Eastern countries.
From his frequent denunciations of antisemitism to his close friendship with an Argentine rabbi, Pope Francis has long been a friend of the Jews.
The Board of the Wallenberg Foundation has resolved to erect a monument that will pay tribute to the life and humanitarian feats of Angelo Roncalli
"I stress that for a Christian any form of anti-Semitism is a rejection of one's own origins, a complete contradiction," Francis said.
Researchers may have to investigate the archives for several years before coming to any conclusions.
Pope and Grand Imam of Al-Azhar meet in Abu Dhabi as 700 religious leaders gather for Conference of Human Fraternity.
The pope told thousands of people at his general audience: "I cannot keep quiet about my deep worry about the situation that has been created in the last few days."
Israeli Rabbi Avraham Steinberg and Argentinean Rabbi Fernando Szlajen were designated as members of the Pontifical Academy of Life.
‘This visit could be of enormous historical importance,’ Paul VI said