MANILA - Mar Roxas, who has failed in his bids for the presidency and vice-presidency, looks to return to the political scene.

In a video posted on his Facebook page, Roxas said he has been thinking about his next political move.

"These past few weeks I've had to undergo the most difficult exams ever, examination of conscience and discernment. Walang ibang kausap o kalaban kundi ang sarili," he said.

According to Roxas, he has asked himself several times what else he can give the country.

"Ano nga ba ang pananagutan ko? Sa sarili ko, sa pamilya, sa kapwa, sa bansa. Feeling ko nagsilbi na ako eh. Parang beterano na. Naibigay ko na lahat ng kaya kong ibigay," he said.

"I'm not perfect. I made mistakes, may mga pagkukulang. Pero masasabi ko, buong buo kong ibinigay ang sarili ko sa bansa at kapwa. I'm not perfect... Nagsilbi ako ng tapat at malinis. Tumototoo ako sa mga prinsipyo," he added.

The former lawmaker also said he has accepted his defeat in the presidential elections, but that does not mean that he will stop serving the county.

"Crisis of conscience ang nangyari sa akin, pero nakita ko rin na simple lang ito. Tapos na ba ang trabaho? Mang-iiwan ba ako?... Mahal ko ba ang bansa natin? Oo. May maitutulong ba ako? Oo," he said.

Although he did not announce the position he is eyeing, Roxas said he will be offering himself to the country again.

"Kung sa tingin niyo, makakatulong pa ako, handa ako. Ino-offer kong muli ang sarili ko sa inyo. At hinihingi ko rin ang tulong niyo dahil hindi ko kaya ito nang nag-iisa," he said.

Roxas has held various positions in government, a résumé that includes 7 years in the House of Representatives and 6 years in the Senate.

He had a chance to run for president in the 2010, but gave way for party-mate Benigno Aquino III, who eventually won.

Roxas ran for vice president that year but lost to former Makati city Mayor Jejomar Binay, although he still held key positions under the Aquino government.

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For 16 months, Roxas headed the Department of Transportation and Communications before he was appointed interior secretary to replace the late Jesse Robredo.

As a member of Aquino's Cabinet, Roxas was criticized for his failure to improve the MRT and for his agency's relief response in the aftermath of supertyphoon Yolanda in 2013.

He also said before in a previous interview that he mulled resignation as interior secretary after police officials kept him out of the loop in the Mamasapano operations that led to the death of 44 policemen.