1. Birth Certificate, Certificate of No Marriage (CENOMAR), & Marriage Certificate.
All these government issued documents are available from the National Statistics Office. Here is their website.
https://www.ecensus.com.ph/Secure/frmIndex.asp
2. PHILIPPINE PASSPORT
All Filipino nationals may apply for a Philippine passport which is issued by the Department of Foreign Affairs. Filipinos abroad may renew their Philippine passports at the nearest Philippine Embassy servicing their area.
Requirements & fees : http://dfa.gov.ph/?page_id=64
Passport application : http://dfa.gov.ph/consular/cforms/Application%20Form.pdf
Philippine Embassies Abroad : http://dfa.gov.ph/?page_id=74