Mr Suthep said this was in response to a request by Gen Nipat Thonglek, the permanent secretary for defence, who said during their meeting today that the protesters should take a break for the Songkran festival.
The PDRC will resume its activities after Songkran, he said.
Mr Suthep and other PDRC core members today led anti-government protesters to call on the Defence Ministry. At their request, an arrangement was made for Mr Suthep to meet Gen Nipat about 12.30pm.
Mr Suthep said he explained the real intentions of the PDRC in their struggle for reforms to Gen Nipat.
Gen Nipat asked him about his comments on the establishment of "sovereign power," Mr Suthep said.
Mr Suthep said he made it clear to Gen Nipat that the "sovereign power" he mentioned had not happened.
He told Gen Nipat his comment was conjecture that once the Constitutional Court ruled that Yingluck Shinawatra and her cabinet could no longer remain in office the "sovereign power" must be returned to the people under Section 3 of the constitution.
Mr Suthep said he told Gen Nipat that: "If that happens, we will declare that the people are the sovereign power and I will be their representative."
Gen Nipat expressed concerns that soldiers were stressed out after having to perform peacekeeping duties for five or six months, and suggested that the PDRC protesters take a break during Songkran, he said.
"I agreed and told him we would resume our movements after Songkran," Mr Suthep added.