Amid renewed concerns about his health, Pope Francis presided over Easter Sunday Mass, and with a hoarse but strong voice, he delivered a major annual message that touched on conflicts across the globe, with explicit appeals for peace in Israel, Gaza and Ukraine.

The appearance came after the pope decided to reduce his participation in two major Holy Week events, seemingly at the last minute.

Those decisions seemed to mark a new phase in a more than 11-year papacy throughout which Francis has made the acceptance of the limits that challenge and shape humanity a constant theme. Now, he seems to have entered a period in which he is himself scaling back to observe, and highlight, the limits imposed by his own health constraints, and to conserve strength for the most critical moments.

On Sunday after the Mass, Francis took a prolonged spin in his popemobile around St. Peter’s Square before ascending to a balcony overlooking it to deliver his traditional Easter message.

“Let us not allow the strengthening winds of war to blow on Europe and the Mediterranean,” he said to the tens of thousands of faithful, dignitaries, Swiss Guards and clergy filling the square.