TEL AVIV — Recalling a visit to the Auschwitz death camp, Pope Benedict XVI wound up a sometimes fraught and often politically charged trip to Israel and the West Bank on Friday with a call for peace and a plea that the Holocaust — “that appalling chapter in history” — must “never be forgotten or denied.”

But, as he has since he arrived from Jordan on Monday on his first trip to the Holy Land as pope, he avoided evoking his German nationality and his personal history in Nazi Germany as some Israelis had demanded. Rather, he blamed the Holocaust on “a godless regime.”

The pope has sought to walk a narrow line between the tripwires of Middle East politics, addressing the concerns of Israelis and of Palestinians. As he left, he spoke in a farewell statement from Israel’s Ben-Gurion International Airport of the separation barrier that Israel has built to …