The Gulf states and the United States are pressing hard to prevent Israel from entering the war, because this would target the infrastructure in the Gulf and the situation would quickly deteriorate out of control
This is what the Wall Street Journal revealed:

Washington officially asked Israel not to participate in the current phase of military operations against Iran, according to people familiar with communications between the two sides.

The Gulf states are putting pressure on the United States to ensure that Israel does not return to carrying out strikes inside Iran, according to Arab officials familiar with the discussions.

These countries fear that any Israeli participation will push Iran into a more violent response that may target the energy infrastructure in the Gulf.

Israeli participation will make it politically difficult for some Gulf countries to join any operations against Iran in the future if they become necessary.

The report reveals that regional mediators have joined this effort, considering that Israel’s entry will make it more difficult for the Iranian Revolutionary Guard to return to the negotiating table.

An American official was quoted as saying that the United States is still coordinating closely with Israel and its Gulf allies, but he did not deny the content of these communications.

The report reveals that American and Israeli goals began to diverge since last spring, as Trump began pushing for a diplomatic solution due to his fears of the impact of energy market turmoil on the global economy, while Israeli officials complained that he stopped the war early before Israel was able to inflict sufficient damage on the Iranian regime or topple it.

In recent days, Benjamin Netanyahu held meetings with ministers and leaders of the security services to discuss the Iranian file, and the current assessment within Israel is to let American economic and military pressures exhaust Iran, while preparing to intervene if Israel is exposed to a direct attack.

The report conveys an important statement by Israeli Finance Minister Bezalel Smotrich, who attended the meetings on the Iranian file, in which he said:

“The ultimate goal is to undermine and weaken the existence of the Iranian regime, and the best way to achieve this is to crush it economically... The current situation serves our interest and we do not wish to bring ourselves into the battle now.”

Trump informed his advisors, according to a person who heard his comments, that no one can deal with Netanyahu, and that the latter “wants to bomb everyone,” which is information that was previously unique to the Wall Street Journal, and the report repurposes it to explain the current American position.