* Iranian and U.S. leaders exchange fiery words
* Soleimani is Iran's most influential commander
* Says U.S. will regret waging a war against Iran
* Quds force chief says Iran ready to confront U.S.
* Israel says Soleimani's threats only empty words (Adds White House spokesman in paragraphs 13-14)
By Parisa Hafezi
ANKARA, July 26 (Reuters) - A powerful commander of Iran's elite Revolutionary Guards said on Thursday that Donald Trump should address any threats against Tehran directly to him, and mocked the U.S. president as using the language of "night clubs and gambling halls".
The comments by Major-General Qassem Soleimani, who heads the Quds Force of the Guards, were the latest salvo in a war of words between the two countries.
"As a soldier, it is my duty to respond to your threats ... If you wants to use the language of threat ... talk to me, not to the president (Hassan Rouhani). It is not in our president's dignity to respond to you," Soleimani was quoted as saying by Iran's semi-official Tasnim news agency.
Soleimani's message was in essence a warning to the United States to stop threatening Iran with war or risk exposing itself to an Iranian response.
"We are near you, where you can't even imagine ... Come. We are ready ... If you begin the war, we will end the war," Tasnim news agency quoted Soleimani as saying. "You know that this war will destroy all that you possess."
Israel's Energy Minister Yuval Steinitz said the fiery rhetoric of Soleimani was only "empty talk" because Iran was aware of "the strength and might of the U.S. military".
On Sunday night, Trump said in a tweet directed at Rouhani: "Never, ever threaten the United States again or you will suffer consequences the likes of which few throughout history have ever suffered before. We are no longer a country that will stand for your demented words of violence & death. Be cautious!"
A few hours earlier, Rouhani had addressed Trump in a speech, saying that hostile U.S. policies could lead to "the mother of all wars".
Fanning the heightened tensions, U.S. national security adviser John Bolton said in a statement on Monday: "President Trump told me that if Iran does anything at all to the negative, they will pay a price like few countries have ever paid before."
Bolton is a proponent of interventionist foreign policy and was U.S. ambassador to the United Nations in the administration of George W. Bush during the Iraq war.
"You (Trump) threaten us with paying a price like few countries have ever paid. Trump, this is the language of night clubs and gambling halls," said Soleimani, who as Quds Force commander is in charge of the Revolutionary Guards' overseas operations.