Reporters watch the speech of Saudi King Salman from a press room, during the opening of the Arab summit in Dhahran, Saudi Arabia, Sunday, April 15, 2018.
The meeting this year took place after the U.S., Britain and France launched dozens of strikes early Saturday at sites they said were linked to Syria's chemical weapons program.
Instead the king focused on rivalries with longtime foe Iran - only 160 kilometers (100 miles) across the Gulf from Dhahran.
Foreign ministers of the 22 countries descended on the kingdom last week ahead of the summit on Sunday, which aims to tackle the Yemeni civil war, Iran's interference in Arab states and the situation in Libya.
"We extend our support to the Palestinians' right to establish their homeland based on the 1967 lines with the capital city Jerusalem, as stated in the worldwide resolutions and Arab peace initiative", said Al-Jubeir during his speech at foreign ministers' preparatory meeting on Friday.
They will also reiterate their commitment to peace that leads to the creation of an independent Palestinian state with East Jerusalem as its capital in line with the 2002 Arab Peace Initiative, which offers Israel normal ties with the Arabs in return for withdrawal from territories it occupied in 1967. The kingdom announced another $50 million for programs run by the United Nations relief agency for Palestinians after the US slashed its aid.
During the past months, Houthi fighters in Yemen have fired ballistic missiles across the Saudi border on several cities including Mecca, which have been intercepted by Saudi air defences.
Russia, China, Iran Condemn Air Strikes on Syria
A global chemical warfare watchdog group says its fact-finding mission to Syria will go ahead even after the US -led airstrikes. Russian Federation has warned the West not to make any "dangerous" moves against its ally Assad's regime.
In February, Russia vetoed a Security Council resolution that would have expressed concern over Iran's failure to block supplies of missiles to Yemen's Houthi rebels.
The summit also comes with Saudi Arabia and Qatar locked in a monthslong diplomatic standoff, with Riyadh accusing Doha of supporting extremists and being too close to Iran.
President Abdel Fatah al-Sisi said, "it is not just the issue of Arabs, but an issue of rightness against force".
The Arab League was founded in 1945 to protect newly-won independence throughout the region.
Iran is an ally of Syria's President Bashar al-Assad and has been waging a proxy war in Yemen against Riyadh.
Syria has been suspended from the organization for the past seven years over Assad's initial crackdown on protests before the uprising turned into all-out war.