"We are confident that the presidency of the Kingdom of Saudi Arabia of this Arab Summit's session at this critical phase will benefit all our countries, which will make them, God willing, able to move forward to promote joint action and preserve Arab national security", the King said.
King Abdullah II bin Al-Hussain of the Hashemite Kingdom of Jordan, the President of the previous Arab League Summit, delivered a speech in which he expressed his thanks to King Salman bin Abdulaziz for the warm reception and generous hospitality.
His Royal Highness Prince Faisal Bin Al Hussein was sworn in as Regent in the presence of Cabinet members.
The main focus of King Salman's opening speech was Iran, which he criticised for "terrorist acts" and "blatant interference" in regional affairs, particularly the conflict in Yemen.
Addressing the meeting, Aboul-Gheit said the decline of Arab influence on the situation in Syria had led to the "domination of foreign powers" there, paving the way for the country's eventual disintegration.
King Salman, who travels rarely because of his declining health, said: "We reiterate our rejection of the United States decision on Jerusalem".
On Saturday, the umbrella Arab League said the summit will not discuss Gulf crisis, which was triggered by last year's cut-off of diplomatic ties between four Arab states and Qatar amid accusations for Doha of supporting terrorism.
"The Saudis are going to push for a much harsher stance on Iran - not necessarily on the nuclear dossier per se, but on Iranian influence in the Arab countries, particularly Iraq, Syria, Lebanon and Yemen", said Karim Bitar of the Paris-based Institute of worldwide and Strategic Affairs.
HM King Hamad expressed appreciation of and pride in all the armed forces participating in the "Gulf Shied-I" drills, now held in Saudi Arabia, wishing the exercise every success, and expressing hope that similar joint military drills will be held, given their great benefits for the security of Arab countries and the progress of the people.