In a message marking the Jewish holiday of Rosh Hashanah, Obama said, however, that developments in the region had given rise to new hopes of peace.

"At a time when Israelis and Palestinians have returned to direct dialogue, it is up to us to encourage and support those who are willing to move beyond their differences and work towards security and peace in the Holy Land," Obama said.

"Progress will not come easy, it will not come quick, but today we (have) an opportunity to move forward, toward the goal we share -- two states, Israel and Palestine, living side by side in peace and security."

"The scripture teaches us that there is a time to love and a time to hate, a time for war and a time for peace. In this season of repentance and renewal, let us commit ourselves to a more hopeful future."

Obama also told American Jews in the message that at a time when "prejudice and oppression" still exist in the shadows of society, their country must stand as a beacon of freedom, tolerance and diversity.

The United States last week oversaw the first direct talks in 20 months between Israeli Prime Minister Benjamin Netanyahu and Palestinian president Mahmud Abbas.

They are due to meet again on September 14 in Egypt in a series of meetings to be held every two weeks that negotiators hope will lead to a final peace agreement within a year.